Evidence for “stable” organocopper intermediates in the reaction between Me2CuLi·LiI and allylic sulfinyl mesylates.
摘要:
The addition of Me2CuLi.LiI to acyclic allylic sulfinyl mesylates bearing a phenyl functionality in the molecule gives rise to chiral allenes 4 and 11 in variable yields and optical purities, presumably via an unusually stable sigma-copper(III) species.