SCIENTIFIC ABSTRACT ROZANSKI, W. - ROZANTSEV, E. G.

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SCIENTIFIC ABSTRACT
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18(0) P/039/60/000/03/002/0 17 , D010/D025 AUTHOR.- R6~a:Aski. Wa av Docent, Doctor of Engineering -------- TITLE. ---------- The Most Important Scientific and Didactic Achievements of the Mining and Metallutf--;ical Academy and Directions of:,,,. Investigations in iron Metallurgy PERIODICAL.- Hutnik 1960, Nr 3, p 92 95 ~ABSTRACT, In the introductory part of this article,the author deals with the,early history of the Academy which was formed in 1919 and originally composed of two departments and. five chairs. Its most active organizers Iwere the'follow- . ing professors-. Engineer Rodzie-,~dcz- and Bielewicz,: Engineer~Korvvin-Krukowski. Doctor of engineering, I..Fes- zczenko-Ozopiwskil, Doctor of Engineering W. LoskieWlez, Doctor of,Engineering R. DaWidowski, 'Engineer A.. Lud-kiewicz.., and Engineer J. Buzek. During 14AW II the Germans closed: the Academy. It was reopened in 1945 with chairs and in- Card 1/8 stitutes covering new fields and subjects o fme.tallurZ7. P/039/60/000/03/002/017 ~DO10/DO25 ~_'_;:e- Most.Important Scientific. and.Didactic Achievements of ~~-he Minin- and Metallurgical Academy and Directions of Ii~vesti- go"bions in Iron Metallurgy mindful of the necessity to replenish decimated staffs of engineers in the industry. To-day the Me- tallurgical Department of the Academy consists of 13 Chairs and 140 scientitic:workers. TheLChair,of,Pig iron metallurgy, headed by.Professor Master of~En i- neering St. Holewi.Ashi is divided into~two~-sub-sections) its scientific activities are concentrated.on:l) Raw- materials for blast furnaces, 2) Intensification of iron production, 3) Investigation on blast-furnace profiles and structure, 4) By-products utilization. As the result of these investigations 29 scientific publications.were issuedi.the most interesting were investigations on zonal sintering process with sim- ultaneous arsenic removal, processing of~slagfor ce- ment, and slag wool production. This work was.carried ineering E Mazan- out mostly by Docent, Doctor of Eng Card 2/8 ek, and Masters of Engineering J. Janowski and R. P/039/60/000/03/002/017 D010/D025 '-"he Most Important Scientific~and Didactic Achievements of the 1,1ining and Metallurgical Academy and,Directions of Investi- gations in Iron Metallurgy Benesch. The Chair of Steel Metallurgy headed by.Pro- fessor, Master of Engineering F. Olszak, is divided into 4 departments: 1) General Metallurgy,'2) Steel metallurgy, 3) Electro-Metallurgy and 4) Iron-Alloys Metallurgy. Eighteen manuals and 43 scientific papersS written mostly by Professor F. Olszak and Master of Engineering J. Kozielski were publisbe(i. The most im- portant investigations conducted by thisL chair dealt with non-metallic steel components, diffusional de- oxydation, improvement-of pig-iron before processinG in open hearth furnaces, slagging of alloy-components. in induction furnaces~ manganese and iron recovery from open hearth furnace slag and investigations on, converter processes. The Chair of Metal Pressure For-. Car ming headed by Professor Doctor ofEngineering W, Les- P/039/60/000/03/002/017 DOlO/DO25 -'"he Most Important Scientific and Didactic Achievements of,the 'Mining and Metallurgical Academy and Directions of Investigations in Iron Metallurgy kiewicz, dealing with steel processing, isdivided in- to three departments:.Rolling,,Forging and D#wing- Over 30 articles dealing with the Chair.'sinv estigations were published; those on rolling.were.written by Pro- fessor W.. Leskiewicz, on pressing and drawing by Do- cents, Masters of Engineering M. Schneiderand K. Janas, while those on roller profiles,-by Docent, Doctor of Engineering J. Bazan. The Chair of Metallography and Heat-Treatment headed by Professor Doctor of Engineer- ing Z. Jasiewicz (after the death in 1956 of the late' Professor Iff. Loskiewicz) is dividecl into three de- partments': Metallography, Heat Treatment, and X-Ray Radiology. The more important achievements.of.this Chair are investigations on ultra-sonic influence on :Card 4/8 diffusion processes, recrystallization of austenite, P/039/60/000/0~/002/017 D010/D025 .The Most Important Scientific and Didactic Achievements, of-the Mining and Metallurgical Academy and Directions of Investigations in Iron Metallurgy relation between heat-expansion coefficient'of metals crystallizing I, inIcubic system and tho~ir melting tem_... perature, step phenomena during torsion tests, quantitative analysis of austenite and martensite in,steels, crystallo- graphy of martensitic changes, growing.and orientation.of, mono-crystal, supersonic damping in relationto grain size in metals, sintering of powders, non-destructive methods... ?f metal examination and electrolytic polishing. These investigations were carried out or supervIsed. by Pro- fessor Master of Engineering T. Malkiewicz, Docent J. Chojnacki, DocentDoctor of Engineering W. R69aAski, Doctor of Engineering St. Glorczyca and Assistant Pro- fessor Master of Engineering J. Lesiec 'ki.'Application of statistical methods for evaluation of investigation re sults are carried out by Professor Doctor'.of Engineering Z. Jasiewicz and Master of Engineering J. Ry6e The Chair ..,Card 5/8 submitted 240 scientific papqrs for publication. Pro- P/039/60/000/03/002/017 D010/D025 The Most Important Scientific and Didactic Achievements of the ning and.Metallurgical Academy and Directions of Inves iga- tions in Iron Metallurgy fessor Doctor of Engineering W. Loskiewicz,was the first in-Poland to lecture on Light Me,tals,Science: and.Metallurgy.,The Chair of Heat Economy was inau- gurated in 1925,and since.ID-rofess.or R. Dawidowskils death it is headed by assistant Professor Doctor of Engineering R.,Andrzejewski. The most important sub- jects being1dealt4ith by the,Chair are combustion of fuels and intensification of firing processes, in the industry theory of gas flow in metallurgical fur- naces, combution of solid fuels on grates, theory.of controlling generator gas composition, problems of metal r6cuperators and regenbr.ators.,Professor An- drzejewski carried out some investigations on high- and low pressure gas burne??s and'Doctor ofzEngineering Card 6/8 K. Miku3:a on dust extraction from flue-gases and me- P/039/60/0010/03/002/017 D010/D025 The Most Important Scientific and Didactic Achievements of the Mining and Metallurgical Academy and Directions of inves,tiga- ~tions in Iron Metallurgy tallurgical fumes. In response to the rapid development of.the heavy industry, the following new chairs were formed: The Chair of Metallurgical Furnace Construction was formed in 1947. The Chair of Coke-Technology was organized in 1957; itis headed by Docent,.Uaster of hort ex* Engineering Fr.Byrtus. In spite of its s istence C) the Chair did some research on preparation of coal charge, for coke-processingg on usefulness of.coke in.blast-_", furnaces, on pulverization and concentration of coal to be used for coke processing. Six scientific papers were already published. In 1956 the Chair of Economics and Production in filletallurgical Plants, under Pro- fessor Master of Engineering A. Zalewski was formed. The chair of Statistics and Accounts headed by Pro- fessor Doctor of Engineering Z. Jasiewicz was organized Card 7/8 in 1958. It is divided into two sections, one is direc- P/039/60/000/0.3/002/017, D010/D025, :.The blost Important Scientific and Didactic Achievements of the .Mining and 1letallurgical Academy and Directions of Investiga- tions in Iron Metallurgy ted by Professor Jasiewicz himself and the second by Master Z. Dymek.The author states that in.this, ,short review only the'most important items were mentioned.,In general, the character of investiga- tions although rather theoretical, was carried out wi th- the intention of possible future.practi.cal application. Some of them were already responsible for savings run- ning into several million zloty. Up to 1939 the Me- tallurgical Section of AGH granted 224 Mechanical Engi- nearing degrees and,4 Doctor-of Engineering degrees. Since 1945 1,300 Mechanical Engineers- and 25 Doctor of Engineering degrees were awarded. ASSOCIATION: Akademia G6rniczo-Hutnicza (Mining and Metallurgical Academy Cracow( Krak6w) Card.8/8 �---- -M . Dis t. ~~g ~j Surfut cleaninmof ~isvdth electricity and Air _AUaAskl.:'- :~: I sadonjoki HuMicie Sadorna 13 2F447 , _'-MOWences obtained: in ~'thts field by the Polish 'T&ium'! steel fottndry~-axe presentul.'._` Themeth6diuvolv~eifusingof;. r n the metal surface in an elec. Val of; a eja d subsequerit rerno it by a 3ti-MM of air under a pressurcof 4-6 atm., YCA., %i 3-5 amp./Ag.-mal. e1 rodetross tlon'.:- Cclectrodcst of ect 3m ' - coated. or nof were; gtll of, *ith electrolytic, Ch, usedr_ Len ...t.he e cc. are shotild W,const. and may.vary only rotallt f clectroticburningin ctn./, e Itco min, ~and-*mte' I I o ceanns " A 'Wilu.in'tu./thin. were: t el - i~~ 110-120,' 6-Inal Mo ind'. o.45 . for:electrode ~:of, ridlus; - .~ %190-210 120~oM.O.Mf6t8-inm.ritdiisele~trode;,.,.400-;-~: 430, 5.0 an 0.72 for electrede having Minin. radius- I --(in' rfd ) ele trode., ..:-.23O,,7Zand'O.64'for 12'X'3 mm. su ci "",29G-390,7.0 and.0.60 W252-uira. electr6deand38O MO.;,:., 4.0afidO.50 for4OA min. elecitiode.'-The methodwas r ' - r6 i 4 t6.- mcks on rolled gid It, Lit far removing c ca ducts, t ~ : Sul e or.most ldndtiof,steelr .~ Efficienc cbstil f kand of tfiii-~ th - m6!d --were ,- camp' mired 1 with,-, flibsi of 4. tnethod --disc o er, -,~ methodi -The iaethdil sicnis to be or g mgots . ; - irld other stiwl ~ products W. aluiast. aU kinds, partic - ' i S t� I ~ hird steeli It is at least 3 6i 44 titnes is efficlenfits .4 in Al V, ~, , _K' .~; . . -.- -1 1 Qlzxl~k-l : . . . ~~ ~: . _;~, ~t UP.-i ow.; - . - -3.. - paramaghetic~ a co. 6, --ABSTRACT: 21776 ESS -NR:'~AP40447121-~~ IoNw ;'cat9y" id-'( ~:kidAUWVW-,2-~-2 ~5-&; er, could ndt-be obtairied-,,by t . ........ 11;.;.-;~.-,~~awv rig', art'.--,,ha-s-,.`1.-' olidi equjit - ------ vdrokvD*r Z, i SSSR--- lftgtitut&~ --ASS CIATION:_:I -Ailkv a eniiiiiii ii. e~k4 ;of- `SS S ~ i S emical.Physki~,Acadd ciendeb "J SU13MT-TED: 21 L AUTHORS. Yurlyev,Yu.K., Rozantsev,EiG.,and SOV/55-58-1-24/33.. Godovikova,S.N. TITLE: Catalytic.Changes of Heterocyclic Combinations. LIV. Change of 2,3,5 - Trialkyl - Furnadynes Into 2,3,5 - Trialkylthiophanes (Kataliticheskiye prevrashcheniya geterotsikU-.heskikh soyedineniy. LIV. Prevrashcheniye 2,3,5 - trialkilfuranidinov v 2,3,5 trialkil- tiofany) PERIODICAL: Vestaik Moskovakogo universiteta, Seriya fiziko-matematicheskikh i yestestvennykh nauk, 1958, Nr 1, PP 183-186 (USSR) ABSTRACT; The method of the analytic change of oxygen-containing heterocyclic combinations in cycles with other heteroatoms was used success- fully for the synthesis of 2,3,5 trimethyl, 2,5 - dimethyl - 3 ethyl - and 2,5 - dimethyl - 3 - propylthiophane out of corresponding trialkylfurnidynes. The obtained 2,3,5 - trialkyl-, thiophanes are colorless fluids not solvable in water, boiling at, the normal pressure, and having a characteristic odor. There are 12 references, 8 of which are Soviet, 3 American, and''.. I French. ASSOCIATION:Kafedra organicheskoy khimii (Chair of Organic Chemistry) AUTHORS'; YurtYev, YU.X., Roz F Luirib-07., 'I _--TLE Synthesis of 2,3,5-Tr~-iallr-,,,.-lthiophanes b,~ Catalytic Transform--- tion of 2,3,5-Trialkyl.'Uranidines (Sintez 2,3,5-trialkiltiofano,,r kataliticheskim prevrashcheniyem 2,3,5-trialkilfuranidinov) .j0- JCJJT 1-himicheskaya- nauka i promyshlennost', 1"'50, Val I I I , V'r 6, pp 830-831 (USSR) ABz'*"RAC'I: The use'of the sulfur-or-~-;.nic ccmpounj- an zortant task for Soviet scientists. The.different stages of a. ;ynthesis of 2,3,5-trialkyltiliophanes from 2,3,5-trialkyl- furanidines are shown. Other-compounds of this group are pro- 3ented in a table. There are 7 Soviet references. A-S."CCI-TIOIT: ',,,Ioskovskiy gosudarstvennyy universitet imeni Lomorlosova (Moscow State University Imeni I.I.V. Lomonosov) 7 SUP,711T'791ED: April 30, 1958 5 (3p4) AUTHORS: Yurlyey, Yu. K., Rozantsevy E. G. SOT/55756-6-27/~l -, Yegorov, Yu. P. TITLE- The Infrared Spectra of Thiop4ne and Its Homologues (Infrakrasnyye spektry tiofana i yego gomologoy) PERIODICAL: Vestnik Moakoysko go univeraiteta. Seriya-matematiki, makhaniki, astronomii, fiziki, khimiit- 1958, Nr,6, pp 215 - 222 (USSh) ABSTRACT: Ae the exact determinationof sulphur containing petroleum fractions is of a great practical and technological interest V. M. Tatevskiy-and one ofthe authois (Ref .1) tried to ana- lyze the Raman-spectr .um of-thiophane and of.eight- of its homo- logues with the Tesult that they observed in all.compounds in- vestigated a characteristic frequency of 690 cm-1 which-was' ascribed to the fully symmetrical oscillation of the tbIophane ring. On the other hand, the . spectra of. the sulphides adth- open carbon chains show -.in ihe.range,.Vetween 600 and 700 CM-1 also intensive lines which-.are-.aacribed,to the.valency oscilla- tions of the C-S Ibond. (Rels 2-'5). Hence, as the 'Raman spectrum is but roughly indicative, and as it in,difficult to decipher it in view of its'extensive background,.the above authors tried Card 1/3 to use the infrared op Iectrum. for identifying:the five-,momber The Infrared Spectra of Thiophane and-Its Homologues SOT/55-58-6-27/31 cyclic sulphides. Besides, publications are lacking of data on the infrared spectrm-of the thiophane homologueep The task, therefore, consisted in finding.'out the characteristics of the individual bands of the various connecting-groups of. the homologues worth an analysis. The infrared spectra were taken of the representatives of the 2-Alkyl-.thiophone range (alkyl-C 2H 5)93H79 04H9) (Fig 1), of the 3-alkyl-thiophanes (Alkyl-C2R50 C3H71:C4H9t C5Hll' i-C5Hlit C 6H13 Fig 2)t~ the spectrum of the 2.5 dimethyl-thiophoneg the representative .a of the range of the 2-5 dim6thyl-3-alkyl-thiophane (Alkyl- CH39 C2 H5, C 3H7, C4 H99 '_C4H9P C5 Hll 'and '-C 5H1 IFig 3). The fist two ranges, but also the last, show in their spectra a repetition of various frequencies which can be employed for. characterizing the individual oompounds. The valency oseilla- tions of C-Sare somewhat lower in the.2-alkyl-thiophones than in the 3-alkyl-thiophones (715-730 and 730-750 cm7l). With all monoalkylthiophanes the frequency of the annular skeleton was at 1260 cm-1, whilst with the trialkyl-thi-aphanes Card 2/3 this frequency amounted to 1250 cm-1. The bands, absent in The Infrared Spectra of Thiophane and Its Homologues SOV/55-58-6-27/31 the infrared spectrum of the thiophene itself and the.bands, all but intensive, inthe infrared spectrum of the monoalkyl- -thiophones in the range about 1370 cm-1, were considerably - stronger with the trialkylthiophones. Furthermore, the inten . sity of the bands in the ranges 2930-2940 and.2960 cm-1 con- siderably increased with the increase of the methylene groups, and the methyl-groups. Investigations in connection with,the infrared spectrum proved that they may be employed advant&,-. geously for an analysis of the sulphur-containing petroleum fractions for determining the thiophane and its hom6l-ogues. contained therein The spectrograms were taken by means of the spectrometer IKS-;I. The constant values of the monoalkyl- -thiophanes and the 2.5 dimethyl-3-alkyl-thiophanes are com- piled in tables 1 and 2. The synthesis of the last mentioned compounds is described briefly. There are 3 figureq, 2 tables, and 22 references, 13 of which are Soviet. ASSOCIATION: Kafedra organicheskoy khimii (Chair for Organic Chemistry) SUBMITTED: September 19, 1958 Pard ~3/~ Yurlyev, Yu. K.,,-RAzantsev, ~--G,f SOV/79-28-61-306/66 Godovikova, S. 11. TITLF.- Synthesis of the 2,5-Dimethyl-3-Alkylfuranidities (Sintez 2,5-dimetil-3-alkilfuranidinov) PERIODICAL: Zhurnal obshchey khimii, 1958, Vol. 28, Nr 8, pp. 2168 2171 (USSR) ABSTRACT: The present paper describes the synthesis of the trialkyl- furanidines, which have the alkylradicals in the 2,3 and 5- positions. Reports in literature on the 2,5-dimethyl-3-ethyl- furanidine only are available (Ref.2). The synthesis is carried out,by distillation of the 4-ethylhezene-1-01-5 with phosphoric acid. The authors synthesized the 2,j,5-tri-. alkylfuranidinea from 2,5-dimethyl-furanidone-3 according t6 the following scheme; Alk"19X 2 2,5-dimethylfuranidone-3 2,5-dimethyl-3-alkyl-3- E20 H2 Card hydroxyfuranidine 2,5-dimethyl-3-alkyldihydrofuran Ni 2 Synthesis of the 2,5-Dimethyl-3-Alkylfuranidines SOV/79-28-8-30'/66 2,5-dimethyl-3-alkylfuranidine. According to this method. 2,3,5-trimethyl-3-hydrofuranidine; 2,5-dimethyl-3-ethYl-3- hydroxyfuranidine and the 2,5-dimethyl-3-PrOPYl-3-hydroxy- furanidine which has not been described, heretofore, were i synthesized, The dehydration of the 2,5-dimethyl-3-alkyl-3-i hydroxyfuranidine produces a mixture of the dihydrofuran isomers with an admixture of diene hydrocarbons. For the dehydration of:thetertiary alcohols of the furanidine~seri.es iodine and p7toluene sulfonic acid are the best means. The, catalytic hydration of the 2,5-dimethyl-3-alkyldihydrofuranb yields 2,5-dimethYl-3-alkylfur--nidone. The described synthesis of the 2,1,5-trialkylfuranidines represents a general method of synthesis of the f~uranidine homologs of this structure. There are 1 table and 7 references, 4 of which are Soviet. ASSOCIATLION: Moskovskiy gosudarstvennyy universi tet (Moscow State Universi,ty) SUBMITTED: July 1, 1957 Card 2/3 I.." If ~LA N, M, BMA YR Alic)'j,37 K-',' BM, Rlo~,'i'EMFV, E."'- r%T-P(I Folarpgrpphj~~ stlid- clf some 11-1-oxide free radiZELIS. IZIV- AN SISSR. Ser. lehu.. no.8 i 1518-154 Ag ';~4~ 0, R-A im~ N.D. 'Iehn2kogo A14 SSSR 07gan cheSkoy nsi; ta fiz.--Lki. AN SSSR. ROZANTSEV, E.G.; SHAPIRO, A.B. I i 0 0 0 bo AUTHORS: Yurlyev, Yu. K._, Rozantsev, E. G. TITLE - Catalytic Conve!-sions of Heterocyclic Compounds. LV. Synthesis of 2,~i-Dimethyl-3-Alkyl- and 2,5-Dimethyl- 3-Arylthlophanet,; PERIODICAL: Zhurnal obshchey khimli, 196o, Vol 30, Nr 2, pp 406- 410 (USSR) ABSTRACT: The authors converted 2,5-dimethyl-3-alkylfuranidines into cot-responding 2,5-dimethyl-3 -alkylthiophanes (aluminum oxide or thorium dioxide were used,as catalysts. 0 for the react Lon was conducted at_~39 the space. velocity of hydrogen sulfide was.0.3'hr C qns,tants and yields of' the obtained~(new) products are.listed in Table A. (1) Name of the compound; (2) bp (pressure in. rwn); (5) found; (4) calculated; (5) Yield (in (~6) Results of analysis for sulfur (in %); M,2,5-Dimethyl-,,, 3-butylthiophane; (8) 2,f"-Dim,~~thYl-3~isobutyltlitophane; card 1/5 (9) 2,5-Dimethyl-3-amylt"ijophane; (10) 2,5-Rime-thyl-3- Cat-ai-itic Conversions of Heterocyclic Compounds. 77860 - L ;.f . Synthesis of 2,5-Dimethyl-3 -Alkyl-and SOV/79-30 2-11/78 . , 7 -isoamylthiophane; (11) 2)5-DimethYl-3-cYclohexylthiophane)~ (12) 2,5-Dimethyl-3-pheriylthiop hane; (13) 2,5-Dimethyl-- benzy1thlophane. , Table A. Constants and yields of 2,5-dimethyl-3-alkyl- (or avyi)-thiODhanes . V In2o l C120 4 M R -0 S- 3 W 3 216-2110 1.4757 (J-89;J0 54-40 51.18 26 18.34, 18.61 8 (748) 1 2 2 IS.37 208-209 1.47 10 0.892- 54,2 7 MAS 36 1 .9-3-3, 18-61. - 9 1 1 18.31 ~ 237- 2 :114 1. ,73 , 0.8868 59.99 58.80 22 17.20 / (765) * 16.97 0 233-2, A L4736 0.8862 59.07 58-80 19 16-1) 1. 17.20 (752) 1 U.93 t 17-118 1.5510 1. 0 102 62.05 61.71 35 15.80, 16-16 (10) 1 1 15.79 95-96 1.9650 - 0 60 61.05 60.20 11,2 0- 16.29, W.67 III-M 1.53(K) ().9783 ~ 65.15 6 i. .41 21A] * Ifj.:V, 15.22), 15.54 15.29 Card 2/5 The catalyst is thorium. oxide on alumina (25e, of Tho 2) It: iJ I t I o II - -,mJ It noted 'Lhl.~t tile oijee,d Vot, the, catal-~JC ~-eae~ion of li-kilinottiyl - -buty' tuvanidine, Is only lial" that L L, U J.011 the I trieL I ty I - __-pcc)pyLt'uv,--nL d ine Thi-,; lo explained by 'LC 'Z~HCL' CaLlOed by tile loriger butyl radical in ::,teL hin(AL 1 -1 1 . . the -3 -potnMorn to the Vuminidlrie cycle and in trans- p o::, i t I o n t o i e vad I c u I e e F1 5 Due- to the sLde reactior,3 Wel-ty(ivation and elimination of, TT2S, f rom t lie Lrite i-inedi ate -1,,t'-trier,ciptooxy-Coinoound), the yields low. For -I 0 C 5-d line t1iy 1 - vyl tit loplianes ave ve. tiese Compoundo (see note to Table A) thorium oxide wa-, found to rive better yields than almiLna. There are 7 fig~ives; I tnble; and l,;r t-efeuen(,es, 12 Soviet" aparjese, 1 U.S. Tlie U.S. i-et'e-erice Is: D. Rank, N'. Sheppard- G.- Szasz, Cilem. p1l"r,"., 1'(, 0) 1 0.1 .1 (j I, it; YC I Lc L7. SirnthesIs o,~ S07/79-30-2-11rj& ny_-,:~-AIkyl- and 2 -Dime L 1 ty 1 2%r h i ophane s 0:_ Fic - 5. Acl.;orption of' the 2, 5-d'L;,,tettivl--3-b,Utyl~L'Llr,anidine molecule an tfte surface o~.' t. tie czttaly,5t and appearance of ;_11frd 4/5 sevic ef"fect at the atom C of~ Cut-anidine cycle 310641611000100310031009 B101/B203 AUTHORS: Rozantsev, E. ko, M. Ya., Myshkin, A. Ye. ~Climen TITLE: Production of isoamylenes from the pentane amylene fraction PERIODICAL: Khimicheskaya promyshlennost', no. 3, 1961, 24-26 TEXT: Isoamylenes contained in the pentane amylene fraction (PAF) of ther- Mal petroleum cracking are a promising rawmaterial for the synthesis of iso- prene. The present paper deals,.with the production of these compounds from the PAF. The investigation was made with PAF of the following composition (% by weight): butane and butylen6s 0.30, isopentane 11.68, pentane, 33-82, pentene-1 12-95, trans-pentene-2 10-34, cis-pentene-2 5.75, 2-methyl butene-1 ~8.06, 2-methyl butene-2, 10-58, 3-methyl butene-1 0.61, isoprene-2.04, trans-piperylene 1.61, cis.-piperylene 1-97, others 0.29. The low content D., of,3-methyl butene-1 is explained by its low,boiling points osses in decanting and storing of the fraction.). A production,of,,isaamylene, by rectification is not possible since thecomponents of the fraction form,, azeotropic mixtures with slightly.different-boiling points. Hydration-of, isoamylenes to isoamyl,:a1cohols by Means ~of '65% R SO gave.low.yields 2, Card 1/7 S/064/61/000/003/003/009 Production of isoamylenes ... B101/B203 only (about 20%). On the basis of the fact that HCl adds, to the double bond on the tertiary C atom, the hydrochlorination of 2-methyl-butene-2 and 2-methyl butene-1 was performed. The resulting tert-amyl chloride (boiling point 840C) can be,easily separated by distillation from the hydrocarbons not #ydrochlorinated. One part by weight of PAF was shaken with three parts by weight of HCl (specific gravity 1.17-1.19) for 3-4 hr. Then, the hydrocarbon layer was decanted, washed.with ice water, dried with CaC12, and fractionated. Among the fractions (35-420C, 42-840C, 84-900C, residue with boiling point above 900C), the 84-900C fraction consisted of almost pure t-amyl chloride. Additional t-amyl chloride was obtained.from the 42-840C fraction by a second distillation so that the total yield was about 85%. The chromatographic analysis of PAF treated with HC1 showed the complete absence of 2-methyl butene-2 and 2-methyl butene-1. Among the three methods of isoamylene production from the chloride; 1) splitting-off of RCl by strong alkalies, 2) catalytic dehydrochlorination, 3) hydrolysis in the presence of weak alkalies and; subsequent dehydration of t-amyl alcohol, the latter was.chosen., Hydrolysis was conducted.at 20-250C,in the presence of 5lia solutions :of soda, sodium bicarbbnate,.ammonium bicarbonate, or calcium hydroxide. Card 2/7 wa._~_ S/064/6,1/000/003/003/009 Production of isoamylenes ... B101/B203 The resulting tert-amyl alcohol was extracted by means of.the,PAF residue, and then fractionated. The 84-900C fraction consisted of t-amyl chloride 'contaminated by t-amyl alcohol, the 9071050C fraction of t-amyl alcohol contaminated by the chloride. Rectifying once more yielded pure tert-amyl alcohol. Isoamylenes formed as a by-product. Table-1 gives the results. The dehydration of t-amyl alcohol was conducted as.follows.; 1) 100 parts by weight of t-amyl alcohol were mixed with 10 parts by weight of VY-2 (KU-2) cation exchanger, and heated.on a water bath. 'Dehydration started at 70-750C, and attained its maximum velocity at 80-850C. The products were collected in a vessel cooled.with dry ice; 2) t-amyl.alcohol was let. through an electrically heated quartz vessel filled with Al 0 at a rate 2 3 of 0-5 ml per 1 ml~of catalyst and per I hour. Table 2 gives the results. As thePAF may also contain a higher amoun,t of 3-methyl butene-I (up to. its isomerization to 2-methyl butene-2 was studied. It was performed, in a continuously working quartz apparatus filled with 1O~- 'Al2(SO 4)3 + 90%. Al 0,. Pure 3-methyl butene-1 was used for t1)i s purpose, which was 2 3 obtained by treating the isoamyl alcohol dehydrated over aluminum oxide: ..,Card 3/7 S/0,64/61/000/003/003/009. Production of isoamylenes,... B101/B203 with 60-65% sulfuric acids Optimumtemperature of isomerization was 2700C. The-degree of isomerization,',was controlledon the basis of:, the.. refractive index. Table 3 gives the results., The advantages of,the.de- scribed procedure are; I 1).highselectivity~ 2) the resulting amyl chloride is free fro mIorganic sulfur compounds, 3) low pressure andlow, temperatures, 4) after removal.of,the:isoamylenes from the PAF,~the.n- amylenes can be worked into.methyl propyl ketone..,,.Isomerization of 3-methyl butene-1 to 2-methyl,butene-2 widens,the,raw-,material basis for isoprene production.. If theisomerization is not performed, the synthesis of methyl propyl ketonealso yields methyl is,opropyl ketone whichis an-., other valuable solvent. The low,.content hydrocarbons inthe PAF could be utilized by extractive distillation,by means of,~dimethyl Sulfolane.(Ref. 6: Patent USA 2,623,844; 1952). There are 3, tables and,' 6 non-Soviet-bloc references. Card 4/7 -M s/o64/6i/ooo/oo3/op3/009 Production of isoamylenes ... B101/B203 7*a6Auq'a 2 9crsfAp aTaLtHst TpeTIPIHoro am"nosoro CrllfpTa V..I. o Temn ypa A 2!uc2r%a. "D T p Karulman A1203 200- 97,T I , 38M 11 150 71 1.3869 I RX) .11 1,3992 S' KY-2 80 81 I,W)5 Table 2 Legend to Table 2: 1) catalyst, 2) temperature, 3) yield of 2-methyl butene-2, 4) of the catalyzate, 5) KU-2 Card 6/7 S/064/61/000/003/003/009 Production of isoamylenes B101/B203 Ta6mija 3 IIAO-Ntemuawo 3-meTIfjI6yTeHa-I a 2-AtCTjvf6yre#f-2 TemisePaTYP C Crenemb mame- noilytteltHux, :)MMAH. % 210 245 1,3770 1.3823 69 270 1 3M 76 3w 1,3840 77 Table 3 Legend to Table 3: 1) temperaturey 2) of the resulting isoamylenes., 3) degree of isomerization Card 7/7 L 41316-66 EWTCm)/FVVP (j AIRM ACC NR: a6om18 /V SOURCE CODS: U.R/0062/0'6/000/006/0979/098 A AUTHM: -Rozantsev, E. G,; Gurlyanova, Ye. N. 13 ORG: Institute of Chemical Physics, Academy of Sciences, SSSR-(Institut khiTaicheskoy fiziki tUFa-d-a-m-ii--n-a-u-k--SS--S-,RT;-Physicochemical Institute im. L. Ya. Karpov ziko-khimi- cheskiy institut) TITLE: Some characteristics of the structure of free iminoxyl radicals of the pipori- dine series SOURCE: A.N SSSR. izv. Ser khim, no. 6, 1966, 979-983 TOPIC TAGS. free radical,,piDoridine, heterocyclic base compound, HVZ)R,0,6 ABSTR-,ICT: In order to determine the spin and charge densities in free iminoxyl radi-, cals, the authors studied the nolar Dronerties of these radicals and comDared them -the Dronerties of the corresponding Ihydrides. The di-pole momentsj(D.41) of the comDouli IP studied (2,2,6,6-tetramethyl-1 I-hydro)Wpiperidine, 2i2,6,6-tetra-methyl,-_oiparidine-l'- hydroxyl, 2,2,6,6--te,'%Iramethyl-4:~zco-pi~-3eridi*ne-I droxyl, 2,2,6,6-tetramethyl-4-hydrexil piperidine-1-hydro.-xyl, nitro-on diohenyl oxide, and dioheny1hydroxylamine) were meas- U urea at 251 in benzene and n-octane. The effect of the Dresence of an unDaired.elec-,: %Iron in 'he =1,10- groun an 'he dinole momeryt was determined. The distribution of the spin density of the unpairad electron was found to be 275 on 'the nitrogen atom and 73% on the oxygen atom. fhe most probable conformations of the hetrocyclic rings of tthe'. Card 1/2 uDc: 541-51+532-143+547.7- L 37213-66 EWT(m)/EWP(j) RM ACC NR: Ap6olII407 SOUaCE CODE: uR/oo62/66/0oo/bo4/o675/0679j. ,,'AUTHOR: Rozan-tIsev,_E,_G.; Krinitskaya L. A.; Neyman, M. B. 4?': ORG: _TM* R (Institut.. _tLj;jj e of Chemical Ph sics Academy of Sciences SSS khimicheskoy fiziki Akademii nauk SSSR) TITLE: Free iminoxyl radical in the hydrogenated pyrrole series SOURCE: AN SSSR. Izvestiya. Serlya khimicheskaya, no. 4, 1966, 675- 079 TD'?IC TAGS: free radical, chemical reaction, heterocyclic base compound secondary amine, chemical valence ABSTRACT: Free iminoxyl radicals of hydrogenated pyrrole were synthesiz d and the possibility of running reactions with them without affecting the free valency was studied. The free iminoxyl radicals of the amides U-etramethyl-c methylpyrrolldine~...- of 2,2-,5,5-4 grrrolinej and 2,2,5,5-tetra '-;-*;Fe-p9-rTd-by catalytic oxidation. These radi were p cals are very stable to,oxygen, can be used to inhibit radical,processes, an i can be readily reduced to the corresponding heterocyclic analoga of hydroxylamine or amines. A new method proposed for protecting the 1/2 Card UDC: 542-914-547-71541-51 6-6 L kc) j T TJD fUf ACC NR-. AP06018126 SOURCE CODE: n./olgi/66/000/006/0037/00-3-.9- 'AUTI-MR: Yasina, L. L.; Shapiro, A. B.; Rozantsev, E. G. ORG: none T !TLE: Inhibition of polymer oxidation with certain free radicalsi SOURCE: Plasticheskiye massy, no. 6, 1966, 37-39 ;T010IC TAGS: oxidation, oxidation inhibition, amine, organic imine c ompound, free radical, EPR spectrometry, paramagnetic Ion ABSTRACT'z The ~j-n-tioxi atjx~properties of carboline and uinoline derivatives were studied by determining the Induction period for oxygen i labsorption by isotactic polypropyleneqand polyformaldehyde~l 2,2,4,4- etrameth 1 a d 2 2,4,4,9-pentameL"hyl-1-1,~~-,-3',-)T-te-trahydro-e-carbolines a n U I I I ,i"I nd Il~ and their oxyl radicals 2,2,4,4-tetramethyl- and 2 2.14,4,9-. 1,pentamethyl 1,2,3,4-tetrahydro-..--carboline-3-oxyl (III and IV t2-spirocyclohexyl and 5,6-benzo-2-spirocyclohexyl-4-methyl-3,~ 1,2t- i 3 ;t~Uet~lrahydrofurano-1,2,3,4-tetrahydroquinolines (V and VI) and their icorresponding -1-oxyl radicals (VII and VIII) were investigated. Radical jIV was a stronger inhibitor than amines I or II or radical III; the UDC: 678.048.2 1, 46325-66 L b1859-67 EVIT(m)ZE-NN i )LT NV/JW/RM LEWPWATI IJP(c) JD ACC NRI AP6031289 SOURCE CODE: UR/0014/66/035/009/1549/1573 AUTHOR: Rozantsevs E. G. ORG: Institute 6f Chgmical Physics, AN SSSR,' Moscow (Institut khimi,cheskoy fiziki AN 5s5AJ- TITLE:: ParamagnetlAerivatives of nitric oxide SOURCE: Uspekhi khimii, v. 35, no. 9, li6l, 1549-1573 TOPIC TAGS: nitric oxide, paramagnetic derivative,free radical ABSTRACT: Studies on paramagnetic derivatives of nitric oxide have been reviewed.. under the headings. 1. Introduction; 2. Paramagnetic nitrogen oxides; 3. The. Tremy salt; 4. R-N-R-raltcals; 5. R-N-R---radicals; and 6. Individual polyradicals., radicals The review was undertaken because monographs on free contain almost.ho data onIparamagnetic derivatives of nitric oxide. In this review, main attentiom is devoted to studies on the structure, reactivity, and synthesis of radicals of this class. There are 61 Soviet and 208 Western references. The Soviet references-7 ures~ [BO include 32 original studies by the author. Orig. art. has: 10 fi.9 SUB CODE: 0 SUBM DATE: none/ ORIG REF: 059/ OTH REF: 210/, !A01 tard UDC. -5-46.668*546.174 sorrm/ -,W?~JJ/DiFt t 11 E;.,.L - k~j `4 'ov, A. AN 6,;SR k-zic-hes- y -i -k AN SSS2'. rac:' L c ~,i -~:3 ~Cnir:Ui, v. 7, no. 2, 190' 0, 187-191 coll"poluld" f,ce radical, ENE, spectrum, The fi-,~-Oz rc-j-~ stabla ra-6icalls C L~. u- ZI c value of 'f cCor,.re*' Is coLstaant for isotropic u U erfino Lnter- actirn -,ri"Ukl t.*,-.c -isotoncs E-199 and H.7201 was doterraned. 'Xcrcury dorivatives- of UJ--, '0 -.,-,4--~.-,.-i-,-,iotnyl-1,2,3,4-'Uo~uran~rdroquinoline, and 2,2- descrilbed. The authors thank F._Ili._Ye-_idis fcr furnishing uhe ne . Grig. art. lias: 5 figures and 1 talbi~- CJPRS: 38,9701 004 ATIE: 25J-e,65 0-1, G RZF: 003 Orf HRM- Card 1/11 UDC: 538-113' 7 7 ACC NRt AT6031630 SOURCE CODE: UR/3175/66/000/029/0035/0041 ~IAUTHOR: Rozantsev, E..G.; Stepanov, A. P., .OPG: [Stepanov] Institute of Chemical Physics, AN-SSSR (Institut khimicheskcy fiziki~. ;M SSSR); [Rozantsev] UPT im. S. M. Kirov 11TLE: New active materials for nuclear magnetometers iSOURCE: USSR. Gosudarstvennyy geologicheskiy komitet. Osoboye konstruktorskoye byuro. ,'Geofizicheskaya apparatura, no. 29, 1966, 35-41 ,7TOPIC TAGS; nuclear magnetic resonance, nuclear spin, nuclear structure, electron po- ilarization, magnetic effect, magnetic field measurement, earth magnetism, proton pola- rization, paramagnetic material, EPR spectrun 1,ABSTRACT: New active materials for use in nuclear precession magnetometers have been I I. ,developed by the Institute of Chemical Physics, All SSSR. These nitric acid radicals' ,'have a nim-Lber of advantages over the conventional aqueous solution of nitrosodiumsul-I 1fonate K2(NO(SO3)2). The operation of nuclear p-mcession magnetometers is cyclic. Firs, t! 'the active material is polarized and then the frequency of the signal, generated by th I I itransducer (containing the active material) in the presence of a magmetic :Field and I sses im- proportional to its strength, is measured. The combination,of the two proce proves the response speed of the magnetometer, and increases the signal-to-noise ratio,. Card 1/3 ACC NR. AT6031630 jThese improvements became possible with the discovery of the nitrosoditnsulfonate.as anIactive material. The dissociation of this salt in water generates paramagnetic ions which exhibit a superfine, well resolved structure of the electron paramagnetic resonance spectrum. Saturation of any line in this spectrum leads to a considerable increase of the nuclear magnetization of 0 the solvent. This phenomenon is called -0,s so; "dynamic polarization". The great d 'isad-- ' vantage Of K20iO(S63)2) is its instability led water, the paramagn c on- In distil eti i l 1 C 3 H, -radical dissociates in seconds. This is hi / t i h f l / < w c an au ocata e rat c process t r e o ' yt I CH H~C . I, N increases with concentration. Two new com pounds were synthesize-d: 2.2,6,6-tetra__~ 0.- methyl-1-6xypiperidine-l-oxyl (II) and 2,2,6,6-tetram6thyl-4-oxypiperidine-l-oxy1 (III).which are.easily dissolvable in many polar and non-polar proton-containing solvents. Both compounds havean electron para- magnetic resonance spectrum with well resolved structure, silmilar..to material '(I).!The new.materials~are very stable., Their solutions did not change over a six month period even with*heating up to 900C. Since both salts can be dissolved in a variety.of or- ganic solvents, one with a high proton concentration and long period of proton,relaxa- tion1can be chosen for best performance-under any climatic conditions. One disadvant- Cord 2/3 ACC NRt AT6031630 OH CH H,C H.Cl \CH,* 0 !age of these materials is the large width of the electron transitions that necessitate la high powered high frequency saturating generator. There is, however, at least in lprinciple.,~the possibility,of synthesizing materials with narrower lines in the super- '!fine structure of their electron paramagnetic msonanca spectra. Orig. art. has: 3 ifigures, 2 tables. jSUB CODE: 18/ S U-B HDATE: aone/ ORIG REF: 005/ OTH REF: 003 Card 3/3 ACC NR.- AI701313.5 SOURCE CODE: UlZI0062/661"000 0091'16501'1652 AUTHOR: Shapiro,' A. B.; Rozantsev, E. G. ORG: Institute of Chemical Physics., AN SSSR (Institut khimlcheskoy fiziki AN SSSR) TITLE: First or.-anothallium free radical SOURCE: AN SSSR. Izvestiya. Serlya.khinicheskaya, no. 9, 1966, 1650-1652 TOPIC TAGS: free radical, thallium compound, exchange reaction SUB CODE: 07 ABSTRACT: In the reacti'on of the free x~~Aica3-6-ace~uyloxymercuri-2j,214,6- tetrame'~hyl-1,2,3,41-tetrahydroquinolinooxy with 'thallium triisobutyrate, an exchange of mercury with thallium. was detected, yielding a new organothallium, free raaical. This was the first time that an organo-Challium free radical had been produced in solution. The hyperfine structure of the.electron paramagnetic, spectrLua of the -new radical was investiga~~4 on thallium isotopes T1203 and rt. has: 2 figures and 1 formula. RS.: IZ-4 il) Tl'-.05 Orig. a Lj P Card I UDC; 542.91+5471.* 13+541.515+5 38.113-4-546.6 L 31886-66 MWIEWP(j) WW/JW/RM ACC NR: AP6012536 SOURCE CODE: UR/0062/66/000/003/0571/0572 AUTHOR: Rozant Gj 32, sev, E. --;.j;i ORG: Institute of Chemical Physics, Academy of Sciences SSSR (Institut khimicheskoy", fizik-i Akademii nauk SSSR) TITLE: Electronic structure of free iminoxyl radicalsl SOURCE: AN SSSR. Izvestiya. Seriya khimicheskaya, no. 3, 1966, 571-572 TOPIC TAGS: free radical, physical chemistry, electrochemical analysis ABSTRACT: An attempt is made to obtain more information on the electron configura- tion of free iminoxyl radicals by the potentiome-tric titration method. The similar- ity of potentiometric titration curves and magnitudes of basicity constants of.the compared compounds shows that secondary amines, hydroxylamines and free imine acids- have pronounced unseparated electron pairs. It is significant that in terms of basicity, free radicals occupy an intermediate pocition between corresponding amines. and hydroxylamines. The pKa are determined for free iminoxyl radicals: 2,2,6,6- tetrametliyl-4-oxopiperidine-i-oxy1 and 2,2,6,6-tetramethyl-4-hydroxypiperidine-l-~ oxyl. Orig. art. has: 1 table and 1 figure. Card 1/2 ..... . 541 541.51:: S/055/59/000/06/21/027 B004/BO02 AUTHORS: Yurlyev, Yd. K., Rozantsevq E0 G. TITLE: Dehydration of 2,315-Trimethyl-3,-oxyfuranidine,~ PERIODICAL: Vestnik Moskovskogo universiteta. Seriya matematiki, mekhaniki, astronomii, fizikiq khimii,~ 1959, No. 6, pp.171-179 TEXT-.,,During the dehydration of 2,3,5-trimethyl-3-oxyfuranidine.:by means of~'." p-toluene-sulfonic acid, the three isomers shown in the scheme on.p 171 may developp which differ from o In6 another by th Ie position-of their double bond Is. Itwas the purpose of this paper-to isolate these isomers,from the,reaction product. The starting substance was produced from 2,5-dimethyl-furanidone-3, according to reference 3. By fractionating:the product obtained from the reaction with p-toluene-sulfonic acid, the authors obtained three mainfractions (Table 1, Fig. 1). Prom the first main fraction, 2,3,5-trimethyl_,L3..sdihydro- furane was isolated. Its structure was shown.by treatment with ozone .(develop- ment of ketonic acid) and by proving the methylketone,group by means.of KIO 3' furthermore by its Raman And infrared spectra (Table 2, Fig. 2),:but mainly by means,of the infrared spectrum within the range 2740 3100 cm (Fig.13)q if Card 1/3 Dehydration of 2,3,5-Tri.methyl-3-QxYfuranidine S/05 59/009/06/21/027 B004Y3002 3 clearly shows the absorption bands at 3065 GM of the CH groups ofL -di- hydro.-furane.. The ultraviolet spectrum (Fi& 4), however,, has no absorption maxima, but it shows the absorption which corresponds to substituted ethylene. 2,3,5-trimethyl- & -dihydro-furane was isolate d from the third main fraction. .. Its structure was determined by the oxidation withozone into 2-pentenone-4 and,'' the oxidation of the latter into crotonic acid,by means of KBrO. Table 2 and figures~213,4 also give the corresponding spec.tra,of these compounds., The Raman 3pectrum shows that the intense line of the double bond is 1581 cm asis the case with the similarly built cyclic vinylether. At 3095 cm-1 the infrarei 2 . . spectrum shows the absorption bands of !2~, -dihydro-furane. The ultraviolet spectrum shows the conjugation of the double bond of the cycle with the free electron'pair of oxygen. The third.isomer, namely 2,5-dimethyl-3-methylene- furanidine was assumed in the second main fraction. After treatment"with 2 2,4-dinitro-phenyl-hydrazine for the purpose of separating 2,3,5-trimethyl-,~N -di- hydro-furane, the.substance was again fractionated, and (Table 3) 2,3,5-tri- 2 methyl-,~K -dihydro-furane was again obtained. Thus, the dimethyl-methylene compound is unstable and is rearranged into the two trimethyl.compounds. There are 4 figures, 3 tables, and 17 referencesp 5 Of which are,Soviet. Card 2 3 ~l I ,I ..I I -I 'I ~.: I ,I. t f ~ ;i- rwi i , m=,!m J~ k C RPL an -ACC-NRs X 502 58 SOURCF 86/~VOOQX A ;~,..,CODE: UR/02 !0/6021/0021: : AUTHORS R t E G G : ozan se ~ . olubev, V -A,,j;, T" Neyma% M~ B. .; ORG: non e TITLE: Method for obtaining. in~i~idl~al-:polyiadicals. Class 12,-*No~ 175 041: 5 SOURCE: Eilmetent izobreteniy i tovainVkh-inakov' no, 20, 1565"'.21 TOPIC TAGS11 Polyradical., polymer triathly polymerization ABSTRACT: This Author Certifies e- presents.a. method~for obtAil~ing ~indfvid ua " ' radicals. .-To obtain , polyradicals. Stable -.tbw*ar ds . o2ygen. -,the stable -radi cairl: ' 6 6.-tetrwethy:L4-701grPiP6ridin6~-1.~ox y1 is reacted 1~ithhexametbvlenediiso na 0 a Li t te olut on .benzene s i at a . temperature of 100C . or vith iNosphorus trichloride )ride : en-- ~~zene solution in presence of xliiij~6 at Od the-tetrachlor de.- tr1e_t1v1 or with. , . of pyromel1itic, acid in, piperidin6 s ut t ol ionla, We ~SUB CODE:: 07/ SUBM, D=: 240(st4/ xl_ Card 5-6 L 1139 6 ACCESSION M AP5022 593 0*, C CHS C H C ?; 1 ~' Cils CHs V C 'c , 'CHj I 'CHS , C 2 A H3 N `Cffs 3 N CH. \CH, citis Oil R . N H M S J tHZ Ut 4 I ctli C113 CH, Ct 3 Ctl3/ \"CH. CD. N- 0. V Coll lC=C CHI '\/clls C14 C~Ichi N Card 2A ,E:',-,` -Antit=or,~acti%d 71~ --,N- Allo -MOT ~-ACCESSIO N 019335' ka 0 Atft"at~Aw~-~b -,-d-ue-t t An -'-,one _repara mqtivi-~Y, of, hP Ato-I blo 1 6-dlil -~oe-b' th )a r o 00 rowj I iAd o f u i re an. roup' -i-hig" abl --gr s uBm rfttD i 19 HiiO C~r M Of ed -ele~ onsl~.o Wdi, 'AuceVm the 'Iniiial,atind atid ".to,~t. cqr*06~difik- OXY p.r es ,-of.. thc~,,~peq Dal V, -9~iifn--C-fm ss 6-:,~OigAnic Aici~di `6f'~z a - c' Ch At Zelinskogo Akademii,naukiSSS ituteJof~organi ejA, R Sci ences ;:7- ~7-. 3 ------- Card 21