Radical addition reactions of alkenylsilanes

Abstract

It has been found that chloroform and carbon tetrachloride add to both trimethyl- and triphenyl-allylsilane. The relative reactivities of the double bond in three series of alkenylsilanes, R₃Si·[CH₂]_n·CHCH₂(R = Me, Ph, or Cl) toward addition by the trichloromethyl radical have been determined, and the relative reactivities of vinyl- and allyltrimethylsilane toward free radical addition by n-dodecanethiol have been investigated. The factors influencing the reactivities of the various alkenylsilanes toward radical addition reagents are discussed.