Show metadata Hide metadata

(19)

(11)

2 027 701

(13)

(51)

IPC

(21) (22)

Application

5020442/04, 1992-01-03

(22)

Actual filing date

1992-01-03

(45)

Published

1995-01-27

(72)

Inventor

Shchel'Tsyn V.K.Varnikova G.V.Vashchekina L.P.Volkova V.A.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa I Proektnyj Institut Monomerov S Opytnym Zavodom"

N,N'-BIS -(2,4- DIAMINOPHENYL) -AMIDES OF 4,4'- OR 4,4'-DIPHENYLOXIDE DICARBOXYLIC ACID AS AN INTERMEDIATE PRODUCTS FOR SYNTHESIS OF 4,4'-BIS- [5(6)- AMINOBENZIMIDAZOLYL -2]- DIPHENYL OR -DIPHENYLOXIDE Russian patent published in 1995 - IPC

Abstract RU 2027701 C1

FIELD: organic chemistry. SUBSTANCE: product: N,N'-diphenyloxide of dicarboxylic acid of the formula (I) where Z - simple bond or O; m. p. is 296-298 C and 266-267 C; yield is 92 and 94%. Reagent 1: N,N'-bis- (2,4-dinitrophenyl) -amide of 4,4'- diphenyl- or -4,4'- diphenyloxide of dicarboxylic acid. Reaction conditions: liquid-phase reduction with hydrogen under increased pressure and temperature on the palladium catalyst in the medium of amide solvent. Synthesized products were used as intermediate substances for synthesis of 4,4'-bis- [5(6)-aminobenzimidazolyl -2]-diphenyl or -diphenyloxide. EFFECT: improved method of synthesis. 1 tbl

Similar patents RU2027701C1

Title	Year	Author	Number
[4,4'- [BIS-(4,4'- DIBENZYLIDENE)-BIS-(CARBONYL)]]-DIPHTHALIC ANHYDRIDE AS MONOMER FOR PRODUCTION OF HEAT RESISTANT POLYMERS	1991	Zhubanov B.A. Messerle P.E. Ushurova R.Sh. Sadchikov A.Ja. Grinina O.V.	RU1804064C
METHOD OF PRODUCING 1,8-{BIS[(PENT-2,4-DION-3-YL)METHYLSULPHANYL]}-3,6-DIOXAOCTANE AND 4,4'-{BIS[(PENT-2,4-DION-3-YL)METHYLSULPHANYL]}-DIPHENYL OXIDE	2012	Dzhemilev Usein Memetovich Akhmetova Vnira Rakhimovna Akhmediev Nail' Salavatovich Veklov Vitalij Aleksandrovich Gabdrakhmanova Rushana Floridovna Ibragimov Askhat Gabdrakhmanovich	RU2529512C2
N'-BIS- (ETHYLENEIMINO)PHOSPHONYL- N''- ARYLUREAS SHOWING ANTIBLASTIC ACTIVITY, N'-DICHLOROPHOSPHONYL -N''- ARYLUREAS FOR SYNTHESIS OF N'-BIS- (ETHYLENEIMINO)PHOSPHONYL -N''-ARYLUREAS AND FLUORO-CONTAINING ANILINES FOR SYNTHESIS OF N'- DICHLOROPHOSPHONYL -N''-ARYLUREAS	1988	Gubnitskaja E.S. Peresypkina L.P. Kremlev M.M. Bojko V.N. Shupak G.M.	SU1839443A1
METHOD FOR SYNTHESIS OF 4,4'-BIS(3-AMINOPHENOXY)BIPHENYL	2021	Begunov Roman Sergeevich Khlopotinin Aleksandr Igorevich Sokolov Aleksandr Andreevich	RU2783104C1
4,4'-BIS-(1-INDENONE-3-YL)-2,2'-DISULFOSTILBENE ELICITING PROPERTY OF ACIDIC DYE	2005	Berezina Galina Rudol'Fovna Vorob'Ev Jurij Germanovich Karnaeva Natal'Ja Vladimirovna	RU2280029C1
4,4'-N,N'-BIS-(5-AMINO-6-CYCLOHEXENYLIDENE-7-[3',4',5'-f,g]-ACENAPHTHENE-2,2'-DISULFOBIPHENYLENE) AS DIRECT AND ACIDIC DYE AND AS PARENT SUBSTANCE FOR SYNTHESIS OF MACROHETEROCYCLIC COMPOUND	2004	Berezina Galina Rudol'Fovna Vorob'Ev Jurij Germanovich Vorob'Eva Svetlana Mikhajlovna	RU2280028C1
4,4'-BIS-(1-INDENONE-3-YL)-2,2'-DISULFOBIPHENYLENE ELICITING PROPERTY OF DIRECT AND ACID DYE	2005	Berezina Galina Rudol'Fovna Vorob'Ev Jurij Germanovich	RU2277558C1
AZA-CROWN-CONTAINING N-ARYL-1,8-NAPHTHALIMIDES AND METHODS FOR PRODUCTION THEREOF	2017	Fedorova Olga Anatolevna Fedorov Yurij Viktorovich Lozinskij Vladimir Iosifovich Panchenko Pavel Aleksandrovich Arkhipova Antonina Nikolaevna Oshchepkov Maksim Sergeevich Oshchepkov Aleksandr Sergeevich Oshchepkova Margarita Vladimirovna	RU2656106C1
METHOD OF SYNTHESIS OF BIS-[(4-HYDROXYPHENYL)ALKYL]-SULFIDES	1986	Prosenko A.E. Pinko P.I. Markov A.F. Koptjug V.A. Krysin A.P. Iljusizov V.A. Konopel'Tseva L.V. Ektereva T.T.	SU1370952A1
METHOD OF PRODUCING POLYARYLENSULFIDE-BIS-MALEINIMIDES	0	Sergeev V.A. Nedelkin V.I. Arustamyan S.S. Erzh B.V. Egorov A.M.	SU957547A1

RU 2 027 701 C1

Authors

Shchel'Tsyn V.K.

Varnikova G.V.

Vashchekina L.P.

Volkova V.A.

Dates

1995-01-27—Published

1992-01-03—Filed