PARTIAL ASYMMETRIC PUMMERER REACTION OF ARYL PROP-2-YNYL SULFOXIDE WITH ACETIC ANHYDRIDE
作者:Tatsuo Numata、Osamu Itoh、Shigeru Oae
DOI:10.1246/cl.1977.909
日期:1977.8.5
The Pummerer reaction of aryl prop-2-ynyl sulfoxides with aceticanhydride was found to be stereospecific. From the 18O-tracer studies, the asymmetric induction at α-carbon is considered to be caused by an intramolecular and somewhat synchronized 1,2-acetoxy migration within the ylide intermediate.