Diastereoselective Michael additions to α,β-unsaturated α-sulfinyl phosphonates in the thiolane series

A chiral racemic 2-phosphono-2,3-didehydrothiolane sulfoxide was used as a Michael acceptor in the reactions with several nucleophiles, in particular thiols. In most cases the reactions were fully diastereoselective. The relative configuration of the resulting adducts was determined.

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