Radical addition of secondary phosphine sulfides and selenides to vinyl selenides.

[摘要]：The first examples of a facile hydrochalcogenophosphorylation of alkyl vinyl selenides are reported. The regiospecific addn. of secondary phosphine sulfides and phosphine selenides to vinyl selenides proceeds under radical initiation (AIBN, 65-70 癈, 1 h or UV-irradn., 1 h) to afford the anti-Markovnikov adducts in 87-95% yield.

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