REGIOSPECIFIC FORMATION OF ALKYLIDENE-1,2-OXASILETANE

Article abstract of DOI:10.1016/S0040-4039(00)80597-3

A new type of 1,2-oxasiletane, alkylidene-1,2-oxasiletane was prepared by oxidation of alkylidenesilirane.Reaction of 1,1-dimesityl-2-Z-neopentylidenesilirane with cyclohexyldimethylamine N-oxide and diphenyl sulfoxide regiospecifically gave 2,2-dimesityl-3-Z-neopentylidene-1,2-oxasiletane (44 percent) and 4-Z-isomer (70 percent), respectively.Both oxasiletanes were thermally stable not to undergo a retro (2+2) reaction