The first examples of a facile hydrochalcogenophosphorylation
of alkyl vinyl selenides are reported. The regiospecific addition
of secondary phosphine sulfides and phosphine selenides to vinyl
selenides proceeds under radical initiation (AIBN, 65-70 ˚C, 1
h or UV-irradiation, 1 h) to afford the anti-Markovnikov adducts in
87-95% yield.
alkyl vinyl selenides - secondary phosphine sulfides - secondary phosphine selenides
- radical addition - functional tertiary phosphine chalcogenides