Palladium-Catalyzed Direct Arylation of Methyl Sulfoxides with Aryl Halides
作者:Tiezheng Jia、Ana Bellomo、Kawtar EL Baina、Spencer D. Dreher、Patrick J. Walsh
DOI:10.1021/ja4009776
日期:2013.3.13
The palladium-catalyzed α-arylation of unactivated sulfoxides has been developed. The weakly acidic α-protons of sulfoxides are reversibly deprotonated by LiOtBu, and a palladium phosphine complex facilitates the arylation. A variety of aryl methyl sulfoxides were coupled with arylbromides. More challenging coupling partners, such as alkyl methyl sulfoxides (including dimethyl sulfoxide) and aryl chlorides