Abstract

Abstractα‐(Thiocyanatomethyl)benzylidenemalononitrile undergoes bromination with N‐bromo succinimide to afford α‐(bromothiocyanatomethyl)benzylidenemalononitrile. This bromo derivative undergoes reactions with sodium hydrogen sulfide, thioglycollic acid, hydroxylamine hydrochloride, phenylhydrazine, and hydrazine hydrate to afford thiophene, 4H‐thiopyran, 4H‐oxazine, pyridazine, and bis(thiazol‐2‐ylidene)azine derivatives, respectively. Mechanistic explanations as well as structure elucidations are discussed.

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