The conjugate-addition reactions between 2,3-dihydrothiin-4-one (2) and a number of copper-containing organometallic reagents are described. New methods have been developed for the synthesis of a variety of 2-substituted thian-4-ones and the corresponding sulphoxides and sulphones. Approaches to the synthesis of 2,3-disubstituted thian-4-ones are also discussed.
R. J. Batten, J. D. Coyle, R. J. K. Taylor and S. Vassiliou, J. Chem. Soc., Perkin Trans. 1, 1982, 1177 DOI: 10.1039/P19820001177
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