Ketone homologation to produce α-methoxyketones: application to conduritol synthesis
作者:Neil Phillipson、Michael S. Anson、John G. Montana、Richard J. K. Taylor
DOI:10.1039/a703073h
日期:——
The scope of Trost’s sulfone homologation procedure for the conversion of ketones into their α-methoxylated higher homologues has been dramatically expanded. The use of zirconium (or hafnium) tetrachloride in the hydroxy sulfonerearrangement step gives good yields with the adducts of aryl alkyl ketones, dialkyl ketones and cycloalkanones, and the rearrangement occurs with total regioselectivity. Mechanistic