Trimethylsilyl trifluoromethanesulfonate promoted chemoselective reactions of acyclic acetals in the presence of cyclic acetals

Trimethylsilyl trifluoromethanesulfonate promoted chemoselective reactions of acyclic acetals with allyltrimethylsilane, allyltributyltin, a silyl enol ether, tributyltin hydride, trimethylsilyl azide and trimethylsilyl cyanide have been achieved in the presence of cyclic acetals.