A procedure for preparation of 3,4,4'-triaminodiphenyl sulfide by reduction of 4-amino-3,4'-dinitrodiphenyl sulfide with hydrazine hydrate in butanol catalyzed by a mixture of iron(Ill) chloride and activated carbon was developed providing the product in no less than 80% yield with the main compound content no less than 93%.
A method for preparing 4-amino-3,4'-dinitrodiphenyl sulfide is developed, based on the reaction of 2-nitro-4-thiocyanatoaniline with 4-nitrochlorobenzene in aqueous-alkaline medium in the presence of a phase-transfer catalyst (PEG 400 or Katamin AB).
Synthesis of 2-Amino-5(6)-(4-aminophenyl)benzimidazole Derivatives: II. Reaction of 2-Nitro-4-thiocyanatoaniline with 4-Nitrochlorobenzene
作者:V. S. Pilyugin、Yu. E. Sapozhnikov、G. P. Shitov
DOI:10.1023/b:rujo.0000003189.87809.53
日期:2003.7
The reaction of 2-nitro-4-thiocyanatoaniline with 4-nitrochlorobenzene in aqueous alkaline medium in the presence of phase-transfer catalyst at 95-100degreesC was studied with a view to obtain 4-amino-3,4'-dinitrodiphenyl sulfide. Optimal conditions for the synthesis and isolation of the product were found.
XOXRYAKOV, YU. B.;AVRUTSKAYA, I. A.;PILYUGIN, V. S.;CHERNYSHEVA, T. V.;LE+
作者:XOXRYAKOV, YU. B.、AVRUTSKAYA, I. A.、PILYUGIN, V. S.、CHERNYSHEVA, T. V.、LE+
DOI:——
日期:——
XOXRYAKOV, YU. B.;AVRUTSKAYA, I. A.;KUCHEROV, S. S.;ITOV, G. V.;TOMILOV, +
作者:XOXRYAKOV, YU. B.、AVRUTSKAYA, I. A.、KUCHEROV, S. S.、ITOV, G. V.、TOMILOV, +
DOI:——
日期:——
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作者:V. S. Pilyugin、L. V. Yakovleva
DOI:10.1023/a:1020993224642
日期:——
A procedure for preparation of 3,4,4'-triaminodiphenyl sulfide by reduction of 4-amino-3,4'-dinitrodiphenyl sulfide with hydrazine hydrate in butanol catalyzed by a mixture of iron(Ill) chloride and activated carbon was developed providing the product in no less than 80% yield with the main compound content no less than 93%.
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作者:V. S. Pilyugin、G. E. Chikisheva、R. B. Valitov、Yu. E. Sapozhnikov
DOI:10.1023/a:1021638231873
日期:——
A method for preparing 4-amino-3,4'-dinitrodiphenyl sulfide is developed, based on the reaction of 2-nitro-4-thiocyanatoaniline with 4-nitrochlorobenzene in aqueous-alkaline medium in the presence of a phase-transfer catalyst (PEG 400 or Katamin AB).