SCIENTIFIC ABSTRACT EFROS, I.N. - EFROS, M.D.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R000412010011-1
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: August 23, 2000
• Sequence Number: 11
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

KDROLIKOV, I.I.1 ZAYTSEVV B;M- (deceasedl; SHMOVP V.I.; VAYNERp A.S.; EMSp
I.N.1 EFROSp V.A*, BUBNOVA, N.I.
Percolation hydroi~sis with a variable flow of liquid. Gidroliz.
i lesokhim.prom. 3.4 no.,22,10-34 161. (MIRA 14:3)
1. Naud%"Jsslsdovate1'skiy institut gidroliznoy i sullfitno-
*fttovqX Iraftyffilennosti' (for Korollkov, Zaytsev9 3Wkovq Vayner)s
2. Seg62h8k17-eidro.1iznyy-zavod (for I. Kfrosq V. Efros# Babnova).
Updio-lyilik- (Peroolation) (Wood-4hemistry)
I

Osnow; ustroistva pritselov dli& bori~)orrietaniia. %-ocnizdat.,
1-91il. 212 p., ill,is., dLIcrs.
Title tr. : Fundam,~nLrils of bor-ibsif-ht desit7n.
U '630. Z31-1
SC: Aeronautical Sciences and Aviation in the 5ovi,-t ',~nInn, Ltbrary of
C-ine-ress, 1955.

PHASEE 1; BOOK EXPLOITATION SOV/6385
.~:fros, 1. Ye., Engineer, Lieutenan' Colonel
Osnovy ustroystva pritselov cilya bornbometaniya Mesign Principles of Bomb-
sights) 2d ed. , rev. Moscow, Voyenizdat, 1947. 318 p. 48, 000 copies
printed.
Ed. : V. M. Gromov, Major-, Tech. Ed. : M. A. Strel'nikova.
PURPOSE: This self-study textbook is intended for technical engineering
personnel and navlgators ir, the Air Force
COVERAGE: Methods of itiming from a di.3tance, optics of bomb sights,
self -calculating mechnnis-rns, and the electric synch roniza tion of transfer
and followup systems --'ire 6~9,-,Joed.
TABLE OF CON,rENTS:
Ch. 1. Aiming 5
Card 1/6

ROZENBERG, E.I.;-M
Telescopes for measuring the nonrectilineurity and noncoaxiality
of,medium-size articles by the sighting method. lzm.takh. no.11:
.10-11 N 163. (HIRA 16:12)

ROZENBERG, r,-.T., EROS., Lye.
Rapid mirror adjuntment in measuring with aut:xoIlima,.ors.
lzm. tekh. no.qi20-21 S 164'. (MMA 18,.'3'/,

ACC NRs AN60220h9 soiji(ci-, coi*.': uii/0-1,7,.,/66/000/002/0029/0029
AlYMOR: 11o,.,.cnbcrk;, E. I.; Efros, I. Ye.; Vurgwiovu, Ye. A.
TITLE: Invautigation of double-itange sight tubes for meaL;uring deviations from recti-
ilinearity and axial alignment in components oe moderate dimensions
!SOURCE: Ref zh. Metrol i izmerit tekh, Abs. 2.32.204
REF SOURCE: Tr. N.-i. proyektno-konatrukt. in-ta tekhnol. mashinostr., no. 1. 1965,
;69-74
TOPIC TAGS: quality control, optic equipment component, optic measurement
!ABSTRACT: The NIITmash of the ASNKh has developed several simplified double-image
sight tubes for measuring deviations from rectilineahty and axial alignment in compo-
nents of moderate dimensions. Pilot models of sight tubes were assembled on a first
class surface plate (1500xlOOO mm) for research and development of methods for neasuri6g
land determination of metrological parameters. 'Ihese tubes were used for measuring the'
!deviations from rectilinearity in a se-ction of the surface of this plate. Tables and
igraphs are given showing the results of measurements which indicate that double-image
sight tubes may be used for precision measurement by the telescopic method. 3 illus-
trations, 5 tables, bibliography of 3 titles. N. Zovina. [Translation of abstract3
l
SUB CODE; 13
Card 1/1 UDC: 535.317.2

I - , - - ..";- -~ ~ A --, ~ ~ ,

ROZENRERGI F.I.i FFTA'-~',
Usor fe- mouzuripil, th,~ ioles. 1'-,m.
tekli. nr-.4:52.-53 Ap 165. OHMA 18:7)

i ACC NRs AP6025637 CA s'-OuR -aco-D E-:uR -/o 4-1-3 io, -
661000/013/&88 08'
ih'VMNTOR: Rezenberg, E. 1. i.
Ye
ORG: None
TITLE: A device for parallel translation of the transit line in a telescopic eight,
e; g. in.an autocollimator. Class 42, No. 183428
SOURCE: Izobreteniya, promys'hlennyye obraztsy, tovarnyye znaki, no. 13, 1966, 88-89
TOPIC TAGS: optic equipiqent.component, collimation, telescopic equipment, optic'prion
ABSTRACT: This Author's Certificate introduces a device for parallel translation of
the transit line in a telescopic eight, e. g. in an autocollimator. The main rhombic
prism in.the instrument (or an equivalent system of mirrors) is mounted so that it
may rotate about.the sighting axis of the telescope. The unit is designed for expan.-
si6a of the limit a-of,transit line displacement to any preset value vithin these
31-its. An additional rhombic prism is mounted so that it may be turned vith respect,
to tJie main prism about an axis parallel to the sighting axis of the telescope.
Card
1/2
UDC; 535.8834

ACC NRs AP602563T
1-telescape; 2--main prim;
3--additioml prisa
SUB CODE: 20j, 14/,:SUBM DATEs, 05Apr65
Card

L 13841-63 EWT(i)/tvd(k)/ijW/EW(b)--- 2 AFFTO/ASD/ESD-3 --N-4t
AT/I,IP(C)/J.YT(IJP)
ACCEE3SION NR: AP3003149 S/0056/63/044/006/2131/2141
AUT-HOR: -C-urevich, V. L.; Efros, L.A.
TIM: On the theory of the acoustoelectri-q effeC_t
S(7JRCE: Zhurnal eksper. i tear. fiziki, v. 44, no. 6, 1963, 2131-2141
TOPIC TAGS: sound absorption, conductor, semiconductor, acoustoelectric
effect
ABSTRACT: A theoretical study is made of the acoustoelectric effect, which
consists in the occurrence of direct current under the influence of a traveling
sound wave propagating in a conductor, with the aim of constructing a phenomeno-
logical theory which wouid be valid in the limiting case of low sound frequencies.
In this theory the effect is regarded as being of second order in the deformtion.
The frequency dependence of the effect and its tensor characteristics are
derived. The concepts of even and odd acous;toelectric effects are introduced,
de-pending on whether the sign of the direct current remains the same or reverses
when t1he direction of sound wave propagatioh is reversed. It is shown thal~- the
even effect can exist only in crystals without symmetry centers. The general
considerations are illustrated with several 4xamples, such as a piezoelectric
'Card 1/2 --- - :

L 13841-63
ACCESSION NR AP3003149
semiconductor, a semicondue vith many energy minima, and.a. conductor with
electron3 and holes. The absorption of sound is calculated in the last two cases.
Me Mandelshtem-Leontovich theory is used to calculate the absorption coeffi-
cient. Other mechanism vhich lead to the absorption of sound and to the
acoustoelectric effect are also treated briefly. Orig. art. has: 49 formulas.
ASSOCIATION: Fiziklo-tekhnicheskly institut im. A. F, loffe Akedemii nauk SSSR
-(Physicotechnical Institute, Academy of Sciences, SSSR)
smamm. o8m63 DATE ACQ. 23JLL163 M;CL% W
SUB CODE: 00 NO Mv SOV: 0046 01 W, 009
Card 2/Z

UMIKetals - Tungsten MAY 52
"Reactive Diffusion of Carbon Into Tungsten.
Part Is" G. S. Kreymer, L. D. Efros, Ye. A. 3
varonk6va
,Zbaw Tekh Piz" Vol XXII, No 5, PY 858-873
Diffusion of carbon into tungsten produces new
carbide phases, Ist WC and thereafter WgC, con-
trary to data by Amdrews and Dusbmann. (cf. J.
Phys - -.bem, 2% 192 5) and by Pirani and Sandor (cf
J- Inst of Metals, 73, 385, 1947)- Relation to
time Of isothermal grovth of WO layer In given.
The coeff cf diffusion. could be computed. In-
debted to Prof Ya. S. Umanskly and to help by
the laboratory of the hard alloys combine. He-
ceived 10 Feb 51.
222T30

NFROS, L. D.
USM/Y&t&U - T=VtAM May 52
"Reactive Diffusion of Carbon Into Tungsten.
Part II. Investigation of Carbon Diffusion in
Unstrained Tungsten," G. S. Kreymerp L. D. Efros.,
Ye. A. Voronkove,
"Mur Tekh Fiz" Vol Ma; Tro 5. pp 874-876
Authors prove experimentally that the diffusion
coeff is not erected by the previous treatment
of tungsten. This is probably due to the feet
that tensions vanish at the temp (VOO-3POO of
the test. Even if some tensions remain in the re-
arystA material they are vithout of feet on the
speed of diffusion. Received 8 Aug 51.
222T31

ZAISEPINAt N.M.; TUP17SYN, I.F.; EFROS, L.S.
W-1-- - - .
Isotopic exchange of hydrogen in methyl derivatives of nitrogen
heterocycles and their oxides. Part 1:OL-picoline, quinaldine,
and their N-oxide. Zhur. ob. khim. 33 no.8:2705-2712 Ag 163.
(MIRA 1611l)

ZATSEPINA, N.N.; TUPITSYN
t - ".�p L.S.
Electronic strUcturig-and-the rate of deuterium exchange In
methyl groups of nitrWen beterocycles and their N-oxides.
Dokl. AN SSSR 154 no'.1t148-151 Ja'64. (KRA 17t2)
1. Gosudarstvohnyy, ihatitut prikladnoy khimii. Predstavleno
akademikom A,N. TerenirWa,

EFROS* L. S.
"Diax7les et leurs derives. Comunication XIXII. Joffe, I. S.., Efrosse, L. S. (p. 2712).
SO: JoQrpal of General Chemistry (Zhurnal Obshchei Khimii). 1937, Vol=e 7, No. 22.

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Isms, 4'. IkI

VeWcbemistry - Dyestvffn
Benzothiazole Derivatives
"Usearch in the Field of Benzothiazole Deriva-
tives. Preparation of l-Be~nzothiazolyl-3-MetbY:L-
$-Pyrazolone," L. S. Efros, L. R. Davidenkov, Lab
of Technol of Org Dyestuffs, IAmingrad Technol.
*Mur abshch Xhim" Vol XXI, No 11, pp 2o46-205o
Verifying patent data, oxidized 2-mercaptoben-
zothiazole in alk soln to form 2-benzothiazolYl-
sulfonic acid*, whose 1003 gr=,P 's easily re-
placeeL by OH, ME2, NEON, and NE-NH2 groups-
194T52
UM/Chemistry Dyestuffs (Contd) Norr 51
condensation of 2-banzothiazolylhydrazine vith
aster or amide of acetoacetic acid yielded 1- .
benzathiazo:lil-3-'methYl-5-pyrazoLone (I). yield
approached theoretical in condensation Vith
aWA . Introduced NO and lff--N-B groups into I.
19452

IWROS L S
==-=A""
Imidazole darivatives. III. Nitration of derivatives of bensimidasole and
preparation of sow now derivatives of 1,2.4.5-diimidazolobenzona. Zhur.
Obahchey Xhimo 22, 1008-13 152. (HM 5-8)
(0ji 47 no.22tl2366 '53)
1. Lensovet Teoh. Inst.. Leningrad.

RHOS, L.S.
Isidazole derivatives. IT. Chemical properties of derivatives of 1.2,4,5-
diiaidaxolobonsons. Zhur. Obahchey Xhim. 22, 1013-24 052. (MMA 5:8)
(CA 47 uo.22:12)66 153)
1. Lensovet Tach. Inst., Leningrad.

CI-imical Abst. -TM
W of derivatives of
yen.
4 3 NO - 5 hanArnidayal and preparation of some now derivatives of
1.0, 1951, -T;Z, ~,~olobenxene. ,1. AW (tvf, V I
n ht I
grad ~.,Jj
-nic
hemisti on). IV. The chemical prop
i"ibiff Hn ji
erties of derivatives of l,2,4,5-df(m:d*zolobcnzene. Aid.
IWO-76.-Sre C.A. 47, 12366ag. if. L. I I.-,.

yzt-n'n~~ t. S.
IrSdazole Derivati-m-s
Investigations of imidazole derivatives. Part 4. Chemical propertirs of 1, 23 43
5-diimiciazolo-benzene derivatives. Zhur. ob. khim. 22 no. 6, 1952.
2
9. Monthly List of Russian Accessions, Library of Congress, November 195S. Unclassified.

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aelewboxylo'k acid sulf4k. which with NaOAc gave the free
30G-25' (from:11,0). This (1.621 g.) and 1.08 it.
o-Cjto(NIfj)v In 10 nd. 20% HCI heated In scated tube 4 bra.
at 180-200*. then neutralized with N11,011 and filtered, pve
&(r-bmimidaw1yI)bcxxiwidasvk, Mated as the di-HCT
soft, in. 8W (fnxn conod. HCI); the free baif could not be
to the formation of gets. Similar oxidation
of 2 5-ZlInt'hylbentimidazole pye 70-5% J-mdAj4-6-
kRximidasdera borWic acid (1), in. 301-2' (from IT10).
This with o-Clr1#(NIfj)i In 2D% IICI as above xnve after 40
min. at 180~2W'
wis-211C. in. 330401 (from ITI), which with 4114011.
M, the free bare (11). to. 340' (from dil. EtOll): this with
4011-AgN% In HtOlf pve a flocculent di-Ag.sall; the
free base yields a dipiqW, in. 282-2.5% 3,41416N)Affr
Me (IM g.) and 1.76 *r. I In 10 mi. 207o HCI heated In a
stated tube 4 Jim. at ISQ-200* gave :,5 -dime,'Ay"42'-kos-
simidasdy1)kxsimUawk. in. high and umharp, which
p7e a 4-HO soft, in, above 360* (from 25%'IICI): the
free bass yields a pkftk, m. 274'. This oxidized with
chromic " as above pre
bexsinidaw1yI)benrimU=k-21jrC? (111), in. about 3W"
(from 15% 1110); this. demboxylated by heating with
sodalline at 300* gave U (filcrate. in. 274*). M with o.
C4114(Mlah and 1699' HCI 4 firs. at 180-200* gave 759p 2-
dasok-31fa, in. above 300* (from dil. IICO. Similivir
edndensatloa With 3,4411,NW.U.Nfe gave 85-W% LS -
dindbyl-S- [34-bensimid4t4yi- S,
imiddsole-JUCT, in. abotat 400' ((;am dil IICI). 2:Phenyl-
5-methyffirnzimidamle with,chromic aciff in aq. TIO)a Kate
2-pknyl-S-bensimida:olecarborylie acid, luilated a% the 110
Sall, in. 304-0 (from aq. 11CI). Clectromptrie titratlan of
this xives 2 pit breaks: at 8.4 and a weak ane whose post-

J.4-dianinspolemy&xximidasak rm 32&-M'
(ham 10% 1ICI)- this reacts with IINOI wit"t I-i-i a
di"Wham got; In AeOff It Im a green VPt- with Phru-
anthmetlubsone. t orit ji*Xii or Aeon
t on
(M iotW des" W Ith-bentimidazolle derive.
C-4. 4i.-iloob . Bmdln haft CharwIlftistic
V
tktk-~Ia~. at WavAes rA 310D-200.
trM-- I .; even the hatter &b-
e" but In the Tbibile ytdow. . V11.1
do of wat W by bdLkg
1~ S.-Who. 1W. 842-3. d. CA. 48, 2r"~
SMA"Ws"(11A )Vowd.1thhol. - . 11.90. Wd
'm OW P"ve 19 ff. eryst. n46k. CH#AX.SO6
(f q.) bested to 2W-W In a wide test Utbe unfil
1W twomwim stopped. then to 2"* ousta a test wkk
!jEfidl-d t. Xjv. . ~ppl- .1 b..WiAuoile on stift. of Mrs.
AL-A fftic NW, ft. 3%-7* (from
5~~) by hate 1.12 it. 3,4411M.-
4SWI (9) With I ad. 1CGA Me! A =11. 1110 40 saba. In a
Mam tWAR at
WM"b the &Wv at 2*-Or.
=-
tion Is unstated. This heatod j~ith in 15~',;
IIC1 In %rale-l wbe fS lirs. at rave
in. IIRS-10' (frfmi dil. Ftoll);
I/Osoll, in:323-V (from fit. 11CO. Similmly
Cql[,Nfc Kaye
VV Urmn fit. HCO. Thii wa,.w oxidiv.,d ai above to 2-
lated as the 110 jail, m. 314-10', which, Itt-afed with i~
C4114NIIA and 10% 110. gave
sdyi-S'(2*-&xsiostid4solyi)lbenxim:da,-o&, isolated in the
6410 sdit, does not m. 3601 (from eq. IICI). 3.4-(lI,N)r-'
C4Ho?6fe gave
bCXXhKW4$d701bcxsi=W4sd#, Isolated as the di-11a ok. does
not m. NO'; the frft fist Is Insol. IU Mg. mAvtnt.-I except
AcOlf In whk-h It form!% the corm. ponding sell. Ifeating
3.4~~14N)sWIsCOalf.111CI with o-CJIANIf,)j
1 0 IICI Its a sealed tube 40 min. at 1FA1-2W*
-- Q__ ffila~ '11171ilL lsr.,411~
M.P.. an FU by bmilm Ll uM AeOflf-
ft 19D G. U. Knallopait-1

~LITROS. L.S.
Imidazole derivatives. Part 7- Preparation-of benzimidazole sulfano
acids by fusion. Zhur.ob.khim. 23 no.5:842-843 My 153. (MlRA 6:3 )
1. laboratoriya tekhnologii organicheskikh krasitelei imeni A.Te. Foray-
Koshitea Leningradskogo tekhnologicheskogo institnts, imeni Leasoveta.
(Banximidazole)

TVRW, L.S.
%00. ~., ~~
Imidazole derivatives. Part 8. Investigation of nitration and &so-coupling
. reactions of 4-aminobanzimidazole derivatives. Zhur.ob.khim. 23 no.6:951-
957 Je 153. (HLRA 6:6)
1. Laboratorlya takhnologii organicheakikh krasiteley imeni A.Te.Poray-
Koshitea Leningradskogo tekhnologicheakogo instituta imeni Lensoveta.
(Bensimidazole)

WRO. L.S.
Imidazole derivatives. Part 9. b)rnthesis of 4-aminobensimidazoles and com-
parison of their chemical proportion with those of 5-aminobenzimidazoles.
Ztnir.ob.khim. 23 no.6:957-963 Je 153. (MM 6:6)
1. Laboratoriya tokhnologii organicheskikh krasiteley imeni A.Te. Poray-
Koshitsa Laningradekogo tekhnologicheskogo instituta imeni Lensoveta.
(Bousimidazole)

UKHAROVA, N.A.; PORLY-101SHITS, B.A.W.1W. 1.S.
Investigation in the field of imidazole derivatives. Part 10. Ac7lation
of 2-ox7mothylbenzimidazole and products of its methylation. Zhur.ob.
khim. 23 no.7:1125-1230 Jl 153. (WAA 6:7)
1. Insitut eksperimentallnoy meditsiny Akademii maditainskikh nauk SWR
(Imidazole derivatives)

I Is
" r ~ I I ~ -1), 0" 1
23,
u-1e) I I) -I aitrnt!,.~ flv~ -1-ni I io 16k It mw
~Plml, witil jijf~ thr,wk-Iii'li ~,nAllmltilllri ;1,,,v th, N atov),
MI lir ,p,~H1-tQjfI,ItfV~ a Vallialiv 11', Omme I),; tile 5-
~Lllfj 1) 1--ifit'll fit th". I"Iltcm4d rhig, 'If,: - re'llit In crm~
~ntrv I., imbli,li. I wml. (j;b,i1dAij itild Ve-mi, Cd. 40,
hif It Ihe 01`114111TA 11to-IN4 IIIV 1~1`1-1111't i.-i dallit1w,
11C.1tilig GO g. KX) ini. N1011i and If)() g.
8007 121 11". ravv. ofirr d4fn, W1.61,'d 1. It, 70-10", in.
42-1". 1 (20 g.) ;jwl b1i ml. cotird. If,R), triwed at 0'
AmOy with 12 ml. WNO, (d. 1.4) In 13 int. conol. IGS04,
and Ow julitt. IK)tircrl mi im niter 0.6 fir. at rmnli wrij).
delticd fk).5l,'04-nitroderiv.(Il)ofl,m. 107*(fronn E"Wli)-
1
1clitilig I K. 39 1111. dry Nfellh, and
2 g. SOC12 0 hrs. gave (m millug 07 80' It in. 107-,q', i&n-
Iiml with the Above spc-daten. Aci; 44.2-0sNICelh-
OVI W, was hnafed&i above with SOCII in Aft Mi 6 firs, it,)
"action toolc pLxoeand t'.r starting niaterial %vaq rec-overed.
11 (2,15 g.) in IW wril. hot 1110 treatt!r] with 30 ml,
Conrd. ILCI, 12 g, Zn ditnt adffed r3pidly, 4nd (he fillr2te
Irrited after ctmipletitm of the re~tctiun with 2.*p ml JJCI
)-icided a plit. of 1. ?j- C4/1I(JV1fj)i. 111C1 (0% front aq.
IICO, which with HiClIsCOJI gave ""tioa-3-bexsyl-
-iwidatrols, III. 15V (11CI sdk, Ill. 242-S") (cf. Rims, CA.
48 rp.,M.
to

t~-

Usbt/dhendstry Mterdatomic- compounft-----
Card 1/1 t Pub. 151 - 17/37
Authors I Efros, Lo S.; Kononovas L, N#; and Bdedp Yao
Title t Investigation of imidazole derivatives* Part 136-Bromination of 1.92-
naphthimidoazole
Feriodical : Zhur. ob..khim. 24/3s 488-491, Mar 1954
Abstract : The analogy exiating between 1,2-naplitimidoazolo and phenanthrene during
the oxidationj as vmll an bronAnation of 1,2-naphthimidazoles is debate4o
The two stages of the bromination procoss - formation of conversion pro-
ductin position 4 and formation of a labile and easily dissociating addi-
tion product - are described, The characteristics of 1,2-naphthimidazole
and their relation to the imidazole ring effect on the bond equilibrium
in molecules with condensed nuclei are explained. The possibility of
bromination of 1,2-naphthimidazola in mineral-acid aqueous solutionsp as
well as in mothyl alcohol or ice-cold acetic acid, va3 established. Four
references: 3-USSR and 1-JJSA (1910-1954)-
Institution t The Lonsoviet Technological Institutep Leningrad
Submitted October 29,, 1953

Droinfroold4n Of 1,3-11aph.
tnlli,,qtnvl Rild Va. I'dcfl -A
Gen Ch
cal. 41). 02,01f.

'USSR/Chemistr7 - Heteroatomic compounds
Card 1/1 Pub. 2.51 - 22/37
Authors Poray-Koshits,, B. A.; Kononova,, L. U.; and 1,;frosj L. S.
Title Study of imidazole dorivativos. Part *12. -Wdation of 1,2-naplithlid-
dazole
reriodical Zhur. ob. IJ-dm. 24/3, 507-512.. liar 1954
Abstract The chemical similarity between 112-naphthimidazole and phenanthrene was
established by studying the effect of the imidazole ring on its conden-
nation with the benzene ring. This similarity was also confirned by t1a
oxidation of 1,2-naphthimidazole, It was found that the oxidation re-
action leads fiyst to the formation of 1,2-naphthimidoazole-3,4-quinone
which converts into phenylimidazole-dicarbocylic acid. Ei&ht'referenceat
4-USSR and 4-Gorman (1892-1953). Table.
Institution The Lensoviet Technological Institute, The A. E. Foray-Koshits Technologi-
cal Laboratory of Organic Dyes, Leningrad
Submitted September 25., 1953

'Xll. Oxidation ct n4plith-
-Ro'hits 1, IJ &!q.Lim- ml, r S
LA.
CA. 10,

USSR7CheM13try
Card 1/1
Authqrs Poray-Koehits, B. A.; Efros, L. S.; Vertkins-, V. N.; and Lutsenko, V. V.
Titlo (,hiinaldine dertyativen obtained froz araxAtic amines and 3irzpla virql
ethers
Periodical Zbur. 0b. Khim. 24, Ed. 5p 895 8980 May 1954
Abstract Quinaldine is a valuable Intermediate product used in the synthesis of
stable Raid and cyanine dyes. The reaction of primary aromatic amines
with simple vinyl ethers appears to be the general rethod of obtaining
quinaldine derivatives. The success of the reaction depends upon the
nature of the substitute oriented in the nucleus. In case of a highlj-
activated molecule of the reacting amino as well as in the case of de-
activation, especially of the o-position relative to the amino Croup, no
quinaldine derivatives can be obtained. "Ifine rcference-,~; 4 German
since 188).
institution; The Lensoviet Technological Inatitute, Lenir-Frad, The A. F. Poray-Koshits-
T-echnoloGical Laboratory of Oreanie'Dye3
- I
"It, 1953

:1 i , - . , ~- 1-1 1 *: -.- ~w 1 !a .- -- ~ , . I . .
11 -. - ...... .. -- -'. ~ ~11 - - ~ -_ E= f*-.,al,=2. , -~-7 ~- , ~ -, v I ~
. I I I- -- . -. . --- I Z~- P - .

~ .! '. r--. -- -: o
~o-- -,~, -~ -4

463
AMORS: Efros, L. S., and Yelitsov, A. V.
TITLE.- Investigation of Imidazole Derivatives. Part 15. Nitration of
Benzimidazolone and 1.3-dimethylbenzimidazolone (Iseledovaniye
v oblasti, proizvodnykh imidazola. XV. Nitrovaniya benzimidazolona,
i 1,3-dimatilbenzimidazolona)
PERIODICAL: Zhurnal Obshchey Khimii, 1957, Vol. 27, No. 1, pp. 127-135 (U.S.S.R.)
ABSTRACT- Because of the absence of systematic investigations on imidazole
derivatives the authors began vith the study of the nitration
reaction of benzimidolone and found that at very soft conditions
(at 00 and with equimolecular amount of nitric acid) benzimidazolone
/dissolved in concentrated sulfuric acid easily forms good yields
of 5-nitrobenzimidazolone. This product was identified with the
one obtained by the Kym-Rattner (2) prescription from 1,2-diamino-
4-nitrobenzene and urea. The product (4-nitrobenzimidazolone)
derived from urea, and 1,2-diamino-3-nitrobenzene could not be
separated from the reaction products. It is evident that direct
nitration of benzimidazolone does not yield great amounts of this
product which is in good confomity with the general properties
of benzimidazolones. Trinitro- and tetranitro derivatives of
Card 1/2 benzimidazolone and 1,3-dimethylbenzimidazolones in cold state

463
Investigation of Imidazole Derivatives. Part 15.
substitute their mobile nitro groups with aniline radicals.
The analogy in the nitration reaction tendency of benzimidazolone
and 1,3-dimethylbenzimidazolone on one hand and other benzimidazole
derivatives on the other hand confirms a previous hypothesis by
L. S. Efros (4) regarding the formation by the benzimidazolones
and their analogues in a strong acid medium of cations as result
of addition of the proton from the medium to the oxygen atom and
it shows the incompetence of the statement that the benzimidazolone
enters into reaction in tautomeric form of 2-oxybenzimidazole.
One list of chemical formulas. There are 5 references, of vhiich
1 is Slavic.
ASSMATION. The Leningrad Technological Institute im. Lensovet (Leningradskiy
Tekhnologichaskiy Institut im. Lensoveta).
PUSENTED BY:
SUBMITTED: January 30, 1956
AVAILAELE:
Card 2,12

/50
AUTHORSs Efros, L. S. and Ionin, B. 1. 79-&
TITLE: Study of Imidazole Derivatives. Part 16. About the Bpaicity of Isomeric
4- and 6-Amine-3-M~sthylbenzlmidszolea (rasledovaniye v obleeti proizvod-
nykh imidamola. X71. Ob oanovnosti izomernykh 4- 1 6-amino-3-metilbensi-
midavolov)
PERIODICAM Zhurnnl Obehahey Xhimit., 1957, vol 27, No 2, pp. 406-411 (U.S.S.R.)
ABSTRACTs Exporiments were conducted to determine the effect of the amino group
in positions 4 and 6 respectively on the basicity or isomeric bentimi-
dazoles, A comparison of the basicity constants of derivatives of 4-
amino-3-methvlbenzimidazole with the constants of analogous'derivativee
of 6ramino-3-methylbenaimidazole showed that in this series of the amino
group in position 4, in contrast to the amino group in ~ositlon �, ban",
almoit no effect on the basicity of the compounds investigated-. A study
of secondary hydrolysis constants of isomeric /'~- and 6-amlnor3-mothyl-
bentimidazoles showed that also in'the case of derivativei-having no
methyl groups in position 3, the basi6itk of the amino group'in position
Card 1/2 4, is considerably smaller than the basicity of'the amino group in positiou

Study of Imidazole Derivatives. Part 16. 79-2-28/58
6. The absence of the effect of the amino group in position 4, on the
basicity is explained by the disruption in the conjugation betveen the
indicated amino group and the nitrogen atom of the benzimidasole hetero
ring.
1 tablet 3 graphs. There are 7 references of which 2 are Slavic
ASSocrATIONs Leningrad Technological Institute imeni Lensovet
PRESYMED Bri
SUBMITTEW March 1. 1956
AVAILABLE: Library of Congress
Card 2/,2

AUTHORS: Efros, L. S.V Todres-Selektor, Z. V. 79-11-45/56
TITLE: Some New Derivatives of Piazoselenol and T",-,air
-Absorption Spectra (Nekotoryye novy-e proizvodnyye
0
piazselenola i ikh spektry po,-,loslicheniya).
PERIODICAL: "'Uhurnal Obahchey Xhinii, 1957, Vol. 27, Nr 11,
pp. 3127-3132
ABSTRACT: Together with R. M. Levit one of the authors in a paper
Cave the results of measurement of the a'~sor.-)tion spectra
of a number of derivatives of piazothiol
c.*'
1*1
which to a certain de.,ree support the quinone-character
of the benzene rin6 of this compound. The present paper
is devoted to correspondinE investigations on the
derivatives of piazose lenol and on the comparison of their
spectra with those of piazothiol As raw ?roducts for the

Some New Derivatives of Piazoselenol and Their Absorption 79-11-45/56
Spectra
derivatives. Some of the amines react with diazotized
aniline and Cive az-)-dyes which the authors succeeded in
anal,lzin3 an-i producinr, in ti pure 916-at,~~. The results of the
mea3aramantB of spectra of thu ?Iazo3elanol aer-11vativea
and their comparison with th,~se of tho analogous piazothiol
derivatives are represQnted in 5 tables of absorption-spactra.
The isomeric 4- and 5-aminopiazoselenoli like the -imino-
piazothiols Possess the properties of arcm,%tic amines: they
readily form acato-compounds, diazotize and unite with
diazo-compounds. The results of the investiCati0l'5 Of
absorption-spQctra of -;iazo3elonol and some of its derivatives
confirm the authors' opinion that it is closer to
o-quinonediimine than piazothiol.
There are 5 fi,~-ures, and 6 references, 3 of which are Slavic.
ASSOCIATION: Ieningrad %bclmological Iustitute imeni Iensovet
(Lenin,-radskjy tekhnolocichaskiy institut im. Lensoveta)
1i
SUBMITTED: November 24, 1956
AVAILABLE: Library of Con,7ress
dard 2/2 1. Pjazoselenol - Derivatives - Spectra

VZMIXkj V*V.: DINABMs.X,Se, kvind. kbim. nauk; YAZALI, R,Y,;
MIYANOTKATL, r.Yu.; FOAT-IrOSEITS, S.A., prof.; ULIMN, K.J.;
MOs, L.S., prof.
Dav~=~Uv 7The~~ synthesis of dirsot dyes. Khim. nau J prom.
3 no,2tlgl-212 10. (KM llt6)
.1 (Azo dyes)

P_ F R
79-1--14/63
ATUTHORS: _-Ero,01L. S. I Yeltaov, A. V.
TITLEs Investigations in the Field of Imidazole Derivatives (Isele..
dovaniye v oblasti proizvodnykh imidazola) XVIII. On the
Problem of the Nitration of 5-mothylbenzimidazole (Xviii. K
voprosu o, nitrovanii 5-,metilbenzinidazola)
PERIODICALe Zhurnal Obahchey Khimii, 19589Vol. 20, Ur It pp. 62-69(USSR)
ABSTRACT: In the investigation of the chemical properties of the benz..
imidazole derivatives the authors absolutely needed 5--mothyl,
-6-nitrobanzimidazole (formula IV) with the exactly datermin-
ed position of the substituents. Their attomptato start from
a partial reduction of 2,4--dinitro-5-methylaniline failed.
For this reason a detour was made. By the treatment of an
amine mixture with hydrogen sulfide in potassium alcoholaTe
they obtained a 5-methyl..6-nitro.-2--mer-~aptobenzimidazole (for-
mula II) which could with permanCanate in an alkaline medium
very easily be oxidized to su'Lfo acid (111) which was then
Card 1/3 with hydrochloric acid converted to the expected benzimida.-

7 0--1- -14/63
Investigations in the Field of Imidazole Derivatives. XVIII. On the Proh.-
lem of the Nitration of 5-Methylbenzimidazole
zole derivative (IV). On boiling nf the mixture. obtained
with formic aid, of the reaction prDducta 3f 2,4-dinitro--5--
-methylaniline the authors with a 65 li4-c yield obtained a com.-
pound which had a melting pcint of '97 C and which according
to the elementary analysis is identical with methyinitrabenz-
imidazole, and which accordingly had to possess the structure
of 5-methyl-6-nitr3benzimidazcla (X). The latter was also
synthesized by Fischer and HeS by nitration of 5-methylbenz-
imidazole M with a molting point of 241 0C, which contra.
dicted the finding of the authors. After a repetitisr and
closer examination of Fischer's and HeW experiments the
authors succeeded in provina that in their nitrat ~~,n with
5-methylbenziuidazole not 5--meiliyl..6--nil~robenzimidazole, but
4- and 6-mononitro derivatives In the rati'~ 5,7 1 4;3 were
obtain 8d. It was found that the produ.3t with a melting point.
of 240 C synthesized by Pipcher and HeO was a 5--methyl--4-
-nitrobenzimidazole, but no tS--nitro derivative, as they had
stated. There are 2 figur.-is, and 'I references, 2 cf which are
Card 2/3 Slavic.

79-1-14/63
Investi-ations in the Field of Inidazole Derivativea. XVIII. On the-Prob.-
0
lem of the Nitration of 5-Methylbenzinidazole
ASSOCIATION: Inningrad TechnclogLoa.MistituU 1mai Iansovet
(Le,ninE;rads',c.iy tekhnoloGichoakiy institut in. Lensoveta)
SUBIMITTED: Decorabor 10, 1956
AVAILABIZ-s Library of Congress
u
Card 3/3 1. "chemistry 2. Nitro compounds 3. Chemical analysis

79 - 2 - 3
AUTHORSt Efrou, L, 3. 1 YQI'taov, A. V.
TITLEt Research in tht.~ Field of Inidazol Derivatives (Ijollidov".11-Lyc V
ob3Aqtj proizvo&qkh inidazola)
XIX. Ai:iinoderivatives of the Benzi:jiftzolon and 1,3-DLiethjlben-
zitaidazolon (XIX. Amitioproizvodnyyc benziuidazolona i 1,3-ditletil-
benzimidazolona)
PDRIODICAL: Zhurnal Obahchey Xhijaii, 19jO, Vol. 28, Hr 2, PI). 441 - 447 (USSR)
ABSTRACTt It VVIS shown already earlier th.,t benzinida3olon (I) and its N,111-
-dirnethy1derivatives in bighly acid mcdiurl differ neither according
to their reactivity nor in their abziorption n1jectrum from benzimi-
dai;olonderivativez. Ifence is concluded that in salt formation the
proton i~3 added to tile curbon:(l ox-.,t;en and forzis a cation. In the
ncutral Liedium (1) is in the o-Phrnylcar*ja!iide forn, :--nd its he-
turorin~; differs from that of imidl-1.zol. In connection with thia
the influence of the iraidazolring on the conden3ation vith a bcn-
zenering was investigated in the present paper, and the detection
of the deforn"tion character of the cloud of elceti-ono in th,,~ lat-
ter atteupted. For this purpoze the ieo-iors cf tirl 4- and 5-
-at,iinoderivatives of the benzimidazolon vtere in-vcoti,;ated as .-fall
Card 112 as of its 1,3-dimctbylderivati,;,-;. 2rom the invt- i3 assumed

-2-36/"
Research in thin Ficld of Laidazol Derivatives. XIX. Anino"'crivritivcs of the Benz-
imida-zolon and 1,3-Ditaebliylbetiziiaiclazolon
th th
that the double bindine between Vic; 5 .~rd 6 carbon atom ij to
~i -i-eut extent enlar,-ed in the as well as in
its 1 iuuthylanalogouj. Thij leads to the riLrro,-cnization at
t ~' Q('R-darljon atom (as was fotind cxp,2ri!:t~:ntul'y). If t1iia a3jump-
tion i-, rirht, an analo-ou.9 defor.,lation of t~], CIOUd of electrons
i3 bound to occur in the berizene core of the unjub3tituted bcn,-,imi-
dazolon nucleu3, or the different reaction pro,)e-ties of the 5-C-Mi-
nobenzimidazol and 5-aminobenzimidazolon wouL~ be difficult to ex-
plain. The confi-itration di3turbancu of t":ij kind ij -aorth nention-
in'li --ince it has not yct b,_~en observed, except the data on the hy-
drAeo Aiich wore found tu lie ~ 'ironiL o-,* late. Pr'~!~_r~_LLive details
well as z3j)ccific data of the compounds are ,ivEn. There are 1
Ci,lure, I table, zmd 8 references, I of wlich arc 31-ic.
2 S~ 0 C 1 A":' 10 IT: Tcchnolo,-,ical Institute imeni Lensovet, Lenin.~.rad (LeninEradskiy
tu;-hnolu,:ichei'1-.ij initituL im. Lem.3ov':ti)
SUBi,L"I122ED: h-larch 11, 1957
AVAILABLE: Library of Conress
Card 212

AUTHORS: Efros, L. S., Yelltsov, A. V. 79-28-4-21/60
----------------- -
TITLEt Investigations in the Field of Imidazol Derivatives
(Iseledovaniye v oblasti proizvodnykh imidazola). XX. Some
Amino Derivatives of Benzimidazolone (XX. Nekotoryye amino-
proizvodnyye benzimidazolona)
FERIODICALs Zhurnal Obshchey Khimii2 1958, Vol. 28, Nr 4, PP- 941-945
(USSR)
ABSTRACTs
In investigating the chemical properties of amino derivatives
of benzimidazolone (I) the authors found, that the a7o-
-binding of 5-aminobenzimidazolone with diazized aniline
takes place at the 6th carbon atom. (II). 5-amino-1,3-di-
methylbenzimidazolone behaves in a similar way:
7 IH C6H5 - N -N NH
\.2 \-O
51 X~~ H , ===O NH ~ I
y 3/ 2
Card 1/3 M

Investigations in the Field of Imidazol Derivatives, 7 9-28-4-21/60
XX. Some Amino Derivatives of Benzimidazolone
CH NH C~o
.NH NH
2 (111)
On the basis of these facts the authors supposed that the
electron shell of the benzene nucleus is deformed in such a
way under the action of the imidazolone nucleus, as to markedly
strengthen the double binding between the 5th and the 6th
carbon atom. In order to determine the degree of this deform-
ation, two aminobenzimidazolones were synthesized and the
interaction of this substances with diazonium salts was ob-
served, whereby in one of these position 6 and in the other
position 4 was blocked by methylgroups. It was found, that
the 5-amino-6-methylbenzimidazolone cannot enter into the
reaction of the azo-binding. Tile 5-amino-4,7-dimethylbenz-
imidazolone, however, reacts with diazo compounds and forms
Card 2/3 azo dyes. These observations prove the earlier drawn con-

Investigations in the Field of Imidazol Derivatives 79-28-4-21/60
XX. Some Amino Derivatives of Benzinidazolone
clusion, that In the molecule of bonzimidazolone the double
bond of positions 5 and 6 is strengthened and the double
bond of positions 4 - 5 and 6 - 7 is weakened under the
influence of the nonaromatic imidazolone nucleus. There
are 8 references, 3 of which are Soviet.
ASSOCIATIONs Leningradskiy teklinologicheakiy institut imeni Lensoveta
(Leningrad Institute for Technology imeni Lensovet)
SUBMITTEDs March 11, 1957
Card 3/3

AUTHORS: Efros, L. S., Yelltsov, A. V. SOV/79-2a-6-37/66
TITLE: Some Aminoderivatives of the Piaselenole (Nekotoryye
aminoproizvodnyye piazselenola)
PERIODICAL: Zhurnal obshchey khimii, 1958, Vol. 28, Nr 81
pp. 2172 - 2174 (USSR)
ABSTRACT: Recently, L.S.Efros (Ref 2) found that the 5-aminopiaselenole
( prmula II) is capable of entering into an azo developing.
For the resulting azo compound the structure (M) had been
suggested, derived from structure (I). In order to sub-
stantiate this suggested azo developing of the 5-amino pia-
selenole the authors synthesized the amines (IV) and (V), in
one of which the positions 4 and 7, in the other the position
6 are blocked by methyl groups. Both amines were obtained by
the combination of the aqueous solutions of the hydrochlorides
of the corresponding substituted triaminobenzenes and of
sodiumselenite. Besides, the nitro compounds (VI) and (VII)
were characterized which are easily formed from the
corresponding ortho-diamines and selenium dioxide. The
Card 1/3 1,2,4-triamine-3,6-dimethylbenzene, hitherto unkneva and

Some Aminoderivatives of the Piauelenole SOV/79-28-8-37/66
necessary for the synthesis of compound (IV), was obtained
by reduction of the trinitro-p-xylone with tin in hydro-
chloric acid. It was proved that tile 5-amino-6-methylpia-
aelenole (V) easily enters into an azo developing reaction
with the salts of the aryldiazonium. The dye (VIII)o gained
from (V) and diazotized 2,5-dichloro aniline, was described.
With 5-amino-4,7-dimethylpiaselenole (IV) an azo developing
was failing, as expected. The results hardly allow to doubt
the suggested structure of the azo dye (IV) and Suggest a
quinoidine structure of the piaselenole (1), a piaselenole
with a double-bond between the 5-4 and the 6-7 carbon atoms.
The incapability of the compound (IV) to form an azo developing
points to the accuracy of the assumption that the entrance
of the azo group into the 5-aminopiaselenole occurs at the
fourth carbon atom. There are 7 references, 4 of which are
Soviet.
Card 2/3

Some Aminoderivatives of the Piaselenole SOV/79-28-8-37/66
ASSOCIATION: Leningradakiy tekhnologichookiy inir,,tittit imeni Lanuoveta
(Leningrad Technological Institute imeni Lensovet)
SUBMITTED: July 4, 1957
Card 3/3

AUTHORS: SOV/79-28-8-38/66
-- ro a, L. S., Yelltsov, A. V.
TITLE; Investigations in the Field of Imidazole Derivatives (Issle-
dovaniye v oblasti proizvodnykh imidazol&)XXI.Synthesia and
Properties of the Imidazolone Imidazolobenzenes (XXI. Sintez
i svoystva imidazolonoimidazolobenzolov)
PERIODICAL: Zhurnal obshchey khimii, 1958, Vol. 28, lir 8,
pp. 2174 - 2178 (USSR)
ABSTRACT: The previously investigated diimidazole benzenes (Formula 1)
approached, as far as their chemical properties are
concerned, the anthracene derivatives (Ref 1): on oxidation
they formed quinones, on halogenation dihalogen derivatives;
their nitration yielded mononitro compounds. In the case
of compound (I) the influence of aromatic imidazole rings
on the central benzene nucleus the meso-positions of which
become unsaturated, plays an important role. The authors
assume (Refs 2,3) that the electron cloud of the benzimidazo-
Ions, as contrasted with benzimidazole ~II), is so deformed
that the double-bond character between the 5 and 6 carbon
atoms increases (III). It was interesting to investigate
ro-rA iA the Properties of compounds in which the benzene ring

Investigations in the Field of Imidazole Derivatives. SOV/79-28-8-30/66
XXI.Synthesis and Properties of the Imidazolone Imidazolobenzenes
could be condensed both with imidazole and imidazolone
hetero-rings. On the treatment of the 5,6-diamino-benzimi-
dazolone and its 1,3-dimethyl analogs with formic and
acetic acid the compounds (IV), (v) and, correspondingly,
('VI),(V!I) were synthesized (Refs,4,5). The ortho-diamines
readily offer themselves as initial products on furion with
urea, yielding the compounds (VIII) and (IX), hithcrto
unknown, the properties of which shall be subjected to
further studies. The oxidation-, bromination- and nitration
reactions of the deriv&tives of the i,2-imidazolone-4!5-imi-
dazole benzene were investigated. Their aigher reaccivity
as compared with the derivatives of 1,2,4,5-diimidazole-
benzene became evident. There are 5 references, 3 of which
are Soviet.
ASSOCIATION: Leningradskiy tekhnologicheskiy institut imeni Lensoveta
(Leningrad Technological Institute imeni Lensovet)
Card 2/3

InvestiCations in the Field of Imidazole Derivatives. 50V/79-28-8-38/66
XXI.Synthesis and Properties of the Imidazolone Imidazolobenzenes
SUBMITTED: July 4, 1957
Card 313

EFROS, L.S.
---------------------
Aromatic bond and acme probleits of the structure of aromatic %;onpound5.
Analele chimie 15 no-3:67-98 il-Ag 060. (EEAI 10.-2)
(Aromatic compounds)

IMS, L. S.
Aromatic bond and some problems involving the strQcture of
aromatic compounds, Usp.khlm, 29 no*2:162-186 7 160.
(MIRA 13:6)
1. Leningradskiy takhnologichookly institat imeni Lensaveta.
(Chemical bonds) (Aromatic compounds)

POZWSHZV, V.A.; TMR -SZLXKTOR *; XrRO"AS__
I ZeyC
Infrared absorption spectra of piaselenole and of a number of its
derivatives. Zhur.obokhim. 30 no.8:2551-2555 Ag '60.
(MIRA 13;8)
1. Gosudatotvenny7 nauchno-iseledovatellskiv institut organicho--
ekikh poluproduktoy i krasiteley (NIOPiK), Moskva.
(Bonsonalonadiazole-Spectra)

ELITSOV, A.V.j EFROS,-L..S-.-
Imidazole derivatives. Part 23: 5.6-Dioxo derirutives of
benzimidazolons. Zhur.obekbims 30 no.100319-3324 0 161*
(KUU 24:4) *
1. Leninvadskiy takhnologicheekly institut imeni Lensovetae
(Benzimi"zole)

IOFFEEJ D.V,; 'EFR~Sj
N-=ldes of aromatic n1trogen-containing heterocycles. Usp.khin. 30
no,11:32-25-1351 N 161. (NIU 14:10)
Is Leningradekiy tekhnologicheskiy institut imeni Lensoveta.
(Heteroeydio ciompounds)

GORELIK, M.V.j-F-YROS,_;~.S. -
Anomaly of the spectral color of certain mesophenylbenzoxanthene
derivatives. Zhuro ob, khim, 31 ~o,4:1209-1215 Ap ,61.
.- (MIPA 14:4)
1. Leningradskiy tekhnologicheskly institut imeni loonsoveta.
(Benzoxanthene)

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1. Ioeningradakiy tekhnologioheakiy inatitut imeni Lensoveta.
(Benz imidazolinone)

YELIISOV~ AN.; EFROSg L.P.
Dbrivatives of imidazole. Part,26. Zhur.ob.khim. 31 no.l2s399/.-
i,bbl D 161. (KMA 15:2)
1. Leninpadakiy tekhnologichaskiy institut, imeni Lenso"U*
(Imidazole)

YELITSOV8 A.V.; EFROS L S
Derivativee of imidasole. Part 27. Zhur. ob. khim. 32 no.ltl96-199
Ja 162. (HIBA 1592)
1, LeningradekLy tekbnologieheskiy institut imeni Lenooveta.
(Imidazole)

YELITSOV, A.V.: EFROS,, L.S,
Izidazole derivativeo. Part 24s Synthesis and oxidation of
5-chloro-6-methoxybenzimidazolone. Zhur. ob. khim. 31 noW215-
1218 Ap 161. (KM 14W
1. Leningradskiy tekhnologicheskly institut imeni lensoveta.
(Bentimidazolinone)

- EFROS L.S.; POLYAKOVAp R.P.; ARGITTI, M.G.
Derivatives of piazthiole and piazoolonole. Part 7:
Monohydroxy derivatives. Zhur.ob.khim. 32 no.2:516-521
F 162. (MIRA 15:2)
1 . Leningradskiy tekhnologicheskiy institut imeni Lansovetas
(Denzothiadiazole)
(Benzoselenadiazole)

KWHINAI I.M.; j~ ~06$ ~LS, ~
Reactivity of metbyl derivatives of N-oxides of aromatic
heterocycles. Zhur.ob.khim. 32 no.7s2217-2227 Jl 162.
(NM 15:7)
1. Leningradakiy tekbnologicheakiy institut imeni, Lensoveta.
(Heterocyclic compounds) (Methyl group)

zHrsN, Go-Du [Sn xuo-tu]; M=-4-Ll.S.
Intermediate products and dyes containing a residue of
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1. Leningradakiy tekhno:Logicheakiy institut imeni
Lensoveta.
(Ethylenimine)
(Ops and dyeing)
~Y

GHZHU CHIJNI-KHUA[Chu Chlun-hu]; EFROS, L.B.
Interuediate products and dyes containing a chloropropionic
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(MIRA 16:6)
1. Leningradakiy tekhnol icheskiy institut imeni Lensoveta.
05 (Dyes and dyeing)
(Propionic acid

TOMCHIN, A.~B.; MOSp L.S.
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1. Leningradskiy tekhq
..plogicheakiy inatitut im. Lensoveta.
(Epithlorohydrin) (Anthraquinones)

YELITSOVI A.V.j KUZNETSOV, V.S,; EFROS L.S.
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3972 D 163. (MIRA 17:3)
1. Leningradskiy tekhnologicheskiy institut imeni Lensoveta.

YELITSOV, A.V.; KUZNETSOV, V.S.; EFROS, L.S.
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1. Leningradskiy tekhnologicheskiy institut imni Lensovata,

71KHS, E.R.; EFROS, L.S.,
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1. Leningradskiy tekhnologicheskiy Institut'imeni Lensoveta.

ZAKIIS, E.R.; EFROS, LoSe
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Zhur. ob. khim. 34 no. 5t1633-1636 My 964. (K:RA 170)

I.M.; MOS. L.S,
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1. len:Lngradaki-y tekbnologi-ahe6ki-y institut 4-Mm--* Tensoyetae,

YEWTSOVO A,V,; LHS, E.R.; EFROSIJ..S.
Derivatives of imidazole. Part 36. Mmr. ob. khim. 34 no.111
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1. Leningradakiy tokbnologicheskiy institut imeni Lensoveta.

ZATSEPRIA, 11.1%; TUPITMI, I.F.; EFROS, L.S.
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