The cross-couplingreaction of allylic carbonates with organosilanes was found to proceed without fluoride ion activation under mild conditions by using a coordinatively unsaturated palladium complex as a catalyst. The reaction was assumed to proceed through an allylpalladium alkoxide derived from the allylic carbonate substrate and a palladium(0) species, the alkoxo ligand activating the organosilicon
Alkenylfluorosilanes smoothly underwent cross-coupling reaction with allylic carbonates in the presence of a palladiun catalyst and in the absence of fluoride ion to give 1,4-dienes in good yields with retention of configuration.