Arylcarbinols react with certain organosilanes in the presence of boron trifluoride to yield hydrocarbons resulting from transfer of an R group from silicon to carbon. The transfer works well with aryl-and allylsilanes and fails with alkylsilanes. Allylation of ionizable carbinols is sometimes accompanied by cation-mediated oligomerization. This can be offset by converting the carbinols in question to their respective allyldimethylsilyl ethers followed by ...