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An effective synthesis of 3‐benzoyl‐2(1 H)‐pyridinethiones 5a – n from stable enol salts 4 of pentene‐1,5‐diones and isothiocyanates is described. An attempt to prepare a 3‐acetyl‐2(1 H)‐pyridinethione from the cyano compound 7 and CH3MgX yielded the ketimine 8.
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Becher et al. (1985) studied this question.
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