Exploiting Aryl Mesylates and Tosylates in Catalytic Mono-α-arylation of Aryl- and Heteroarylketones
作者:Wai Chung Fu、Chau Ming So、On Ying Yuen、Irene Toi Chuk Lee、Fuk Yee Kwong
DOI:10.1021/acs.orglett.6b00643
日期:2016.4.15
The first general palladium catalyst for the catalytic mono-α-arylation of aryl- and heteroarylketones with arylmesylates and tosylates is described. The newly developed indolyl-derived phosphine ligand L7 has been identified to promote this reaction efficiently. The key to success is attributed to the enhanced steric congestion of the catalyst and effective oxidative addition of the C(Ar)–OMs bond