FIELD: organic chemistry, chemical technology.
SUBSTANCE: invention relates to a method for synthesis of benzofurazans by reduction of benzofuroxanes in ethylene glycol medium. Sulfur is used as a reducing agent and taken in the amount 0.5-1.0 g-atom per 1 g-mole of furoxane, and the process is carried out at temperature 140-155°C. Proposed method for reduction of benzofuroxanes with sulfur in ethylene glycol is safety and economy.
EFFECT: improved method of synthesis.
4 ex
Title | Year | Author | Number |
---|---|---|---|
METHOD OF PREPARING 5-AMINOBENZOFURAZAN | 0 |
|
SU819103A1 |
4,7-DINITROBENZOFURAZAN AS INTERMEDIATE PRODUCT FOR SYNTHESIS OF 4-CHLORO-7-NITROBENZOFURAZAN | 0 |
|
SU937454A1 |
PROCESS FOR PREPARING 4-AZIDO-7-NITROBENZOFURAZANE | 0 |
|
SU1066994A1 |
1,2,5-OXADIAZOLE DERIVATIVES, HAVING ANTI-HIV ACTIVITY, PHARMACEUTICAL COMPOSITION, METHOD OF INHIBITING HIV-1 INTEGRASE | 2012 |
|
RU2515413C2 |
METHOD OF PREPARING BENZOFURAZAN | 0 |
|
SU576316A1 |
METHOD OF PREPARING 5-NITROBENZOFURAZAN | 0 |
|
SU574445A1 |
3,3'-BIS(FLUORODINITROMETHYL-ONN-AZOXYFURAZANYL)FUROXANE AND METHOD OF OBTAINING THEREOF | 2014 |
|
RU2557552C1 |
METHOD TO PRODUCE 3, 4-BIS(3-AMINOFURAZAN-4-YL)-FURAZAN AND ITS N, N'-DIACYL DERIVATIVES | 2012 |
|
RU2489428C1 |
STABLE RADICALS HAVING BACTERICIDAL AND FUNGICIDAL ACTIVITY | 2011 |
|
RU2465279C1 |
METHOD OF PRODUCING BENZODIFURAZAN | 2023 |
|
RU2821795C1 |
Authors
Dates
2006-10-10—Published
2005-04-15—Filed