A NEW SYNTHESIS OF γ-HYDROXYVINYLSTANNANES AND SILANES UTILIZING β-STANNYLVINYL AND β-SILYLVINYL SULFONES

Article abstract of DOI:10.1016/S0040-4039(00)88253-2

β-Stannylvinyl sulfone 1 (new compound) and β-silylvinyl sulfone 2 on sequential treatment with Bu3SnLi and aldehydes afforded γ-hydroxyvinylstannanes 6 and silanes 7, respectively, in good yields.From β-chlorovinyl sulfones 9 and 10 stannanes 11 were prepared.The stannanes 11 were shown to be useful for the synthesis of α,β-unsaturated γ-lactones 12.