Abstract
AbstractThis report describes the oxidative coupling reaction of dithiopyrimidines with phenylhydrazine hydrochlorides to synthesize a series of arylthiopyrimidine derivatives. The reaction does not require transition metals as catalysts, and uses organic dye rose bengal as photocatalyst and air as oxidant. The reaction conditions are mild and meet the requirements of green chemistry. In addition, the method has a wide scope of substrates and good tolerance of functional groups. The control experiment showed that the reaction may be a free radical mechanism, and the molecular weight of the intermediate was captured by high‐resolution mass spectrometry.
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