All articles of this category A general method for the preparation of aromatic α-mercapto ketones 10 has been developed. These substrates react with vinyl phosphonate 11 to form highly functionalized thiophenes. 4-arylthiophenes - Michael addition - intramolecular Wittig reaction - α-mercapto ketones - aromatization
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Coppola et al. (1995) studied this question.