Generation of the<i>α</i>-Sulfinyl Carbenoid from<i>α</i>-Chloro Sulfoxides: A New Method for One-Carbon Homologation of Ketones to<i>α</i>-Sulfinyl Ketones
carbenoids were successfully used in a new method for homologation of ketones to α-sulfinyl ketones. Treatment of the carbanion of chloromethyl phenyl sulfoxide with ketones gave the adducts, α-chloro β-hydroxy sulfoxides, in nearly quantitative yields. The adducts were treated with excess lithium diisopropylamide to give one-carbon homologated α-sulfinyl ketones via α-sulfinyl β-oxido carbenoids in moderate