作者:Dennis G. Garratt、Pierre L. Beaulieu、M.Dominic Ryan
DOI:10.1016/s0040-4020(01)83115-x
日期:1980.1
Benzeneselenenyl chloride reacts with 1,3-dialkyl-substituted allenes in methylene chloride solution to give 1:1-adducts. Attack by selenium is found to occur exclusively at the central allenic carbon. In contrast to the analogous reaction of arenesulphenyl chlorides, the preferential formation of the Z-alkene is observed. A mechanism involving the preequilibrium formation of alkylideneseleniranium