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The synthesis of 4‐benzoyl‐5‐phenyl‐1,3‐oxathiol‐2‐ones 1 and the behaviour of 1a against several amines were investigated to afford aminomercaptoethenes 2 or thiocarbamates 3 , as well as complete cleavage to sulfur, dibenzoylmethane and the corresponding urea, depending on the nature of the N ‐nucleophile used.
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He‐Xi et al. (1993) studied this question.
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