Author/Authors :
Porter، نويسنده , , Ned A. and Zhang، نويسنده , , Guiru and Reed، نويسنده , , Aimee D.، نويسنده ,
Abstract :
Lewis acid-promoted free radical addition to 3-silyl-1-butenes occurs in good yield to give predominantly the cis-substituted alkene. The transfer reaction occurs by atom-transfer addition of the alkyl bromide precursor, an addition that occurs by Felkin–Anh control. Stereoselective anti elimination of the intermediate β-silylhalide gives the cis olefin.