K. V. Lipin, O. V. Ershov, S. V. Fedoseev
Jan 1, 2020
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Journal
Russian Journal of Organic Chemistry
Abstract
Previously unknown 3-R-sulfanyl-5-amino-1-phenyl-1 H -pyrazole-4-carbonitriles were synthesized by reactions of 2-[bis(alkylsulfanyl)methylidene]malononitriles with phenylhydrazine. A similar reaction with 2-(1,3-dithiolan-2-ylidene)malononitrile afforded 3,3′-{disulfanediylbis[(ethane-2,1-diyl)sulfanediyl]}bis-(5-amino-1-phenyl-1 H -pyrazol-4-carbonitrile).