Abstract
One-pot synthesis of (5Z,7Z)-5-amino-7-(ethyl or arylimino)-2,3,4,7-tetrahydro-1,4-thiazepine-6-carbonitriles from cyclocondensation of 2-((ethyl or arylamino)(mercapto)methylene)malononitrile potassium salts or their methylated derivatives with 2-chloroethylamine hydrochloride or cysteamine in dimethylformamide via two routes but a single intermediate is described.
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