A Versatile Catalyst System for Suzuki−Miyaura Cross-Coupling Reactions of C(sp2)-Tosylates and Mesylates
摘要:
A catalyst system for the Suzuki-Miyaura cross-coupling reactions of aryl and vinyl tosylates and mesylates has been developed. This catalyst displays excellent functional group tolerance and allows the coupling of heteroarylboronic acids with aryl tosylates and mesylates to be performed in high yields. Moreover, reactions employing alkylboronic acids, as well as heteroaryl, vinyl, and allylic pinacol boronate esters, were conducted with high efficiencies.
A General Palladium Catalyst System for Suzuki−Miyaura Coupling of Potassium Aryltrifluoroborates and Aryl Mesylates
作者:Wing Kin Chow、Chau Ming So、Chak Po Lau、Fuk Yee Kwong
DOI:10.1021/jo100846t
日期:2010.8.6
The first general examples of palladium-catalyzed Suzuki-type cross-coupling of aryl and heteroaryl mesylates with potassium aryl and heteroaryltrifluoroborates are presented. In addition to biaryl couplings, the cross-coupling reactions of arylmesylates with alkyl and vinyltrifluoroborate salts have also been successfully accomplished.