SU1822140A1 - Method of benzimidazolechalcogenones-2 synthesis - Google Patents

Method of benzimidazolechalcogenones-2 synthesis

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Publication number
SU1822140A1
SU1822140A1 SU4928048/04A SU4928048A SU1822140A1 SU 1822140 A1 SU1822140 A1 SU 1822140A1 SU 4928048/04 A SU4928048/04 A SU 4928048/04A SU 4928048 A SU4928048 A SU 4928048A SU 1822140 A1 SU1822140 A1 SU 1822140A1
Authority
SU
USSR - Soviet Union
Prior art keywords
reagent
ethanol
yield
benzimidazolechalcogenones
synthesis
Prior art date
Application number
SU4928048/04A
Other languages
Russian (ru)
Inventor
А.Ф. Асланов
Н.И. Коротких
О.П. Швайка
Original Assignee
Институт физико-органической химии и углехимии им.Л.М.Литвиненко
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Институт физико-органической химии и углехимии им.Л.М.Литвиненко filed Critical Институт физико-органической химии и углехимии им.Л.М.Литвиненко
Priority to SU4928048/04A priority Critical patent/SU1822140A1/en
Application granted granted Critical
Publication of SU1822140A1 publication Critical patent/SU1822140A1/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

FIELD: chemical technology. SUBSTANCE: product: benzimidazolechalcogenones-2 of the formula cH-NH=x-NH (I) where x - Se, S. Reagent 1: o-phenylenediamine. Reagent 2: selenium or sulfur. Reaction conditions: biphase system: chloroform/aqueous concentrated alkali, at 50-65 C. Preferably addition of 3 mole% (not less) quaternary ammonium salts. (Ia), x - Se, m. p. is 235 C (with decomposition from ethanol), yellow powder, R= 0.52, yield is 18-48%; (Ib), x - S, m. p. is 298-300 C (from ethanol), R= 0.52, yield is 45-75%. Synthesized compounds can be used as stabilizing agents for polymers, accelerating agents for rubber vulcanization. EFFECT: improved method of synthesis. 2 cl
SU4928048/04A 1991-04-15 1991-04-15 Method of benzimidazolechalcogenones-2 synthesis SU1822140A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU4928048/04A SU1822140A1 (en) 1991-04-15 1991-04-15 Method of benzimidazolechalcogenones-2 synthesis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU4928048/04A SU1822140A1 (en) 1991-04-15 1991-04-15 Method of benzimidazolechalcogenones-2 synthesis

Publications (1)

Publication Number Publication Date
SU1822140A1 true SU1822140A1 (en) 1997-06-10

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ID=60537118

Family Applications (1)

Application Number Title Priority Date Filing Date
SU4928048/04A SU1822140A1 (en) 1991-04-15 1991-04-15 Method of benzimidazolechalcogenones-2 synthesis

Country Status (1)

Country Link
SU (1) SU1822140A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115894915A (en) * 2022-12-09 2023-04-04 大连理工大学 Preparation method of polythiourea/polyselenure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115894915A (en) * 2022-12-09 2023-04-04 大连理工大学 Preparation method of polythiourea/polyselenure
CN115894915B (en) * 2022-12-09 2024-03-22 大连理工大学 Preparation method of polythiourea/selenourea

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