Palladium-Catalyzed Synthesis of α-Diimines from Triarylbismuthines and Isocyanides
作者:Yohsuke Kobiki、Shin-ichi Kawaguchi、Akiya Ogawa
DOI:10.1021/acs.orglett.5b01566
日期:2015.7.17
In this study, we report a highly selective coupling reaction between triarylbismuthines and isocyanides using palladium diacetate as the catalyst, affording alpha-diimines, with the formation of three C-C bonds. Among several aryl sources,(Ar-YLn : Y = B, Sn, Pb, Sb, Bi, I), only triarylbismuthines successfully undergo coupling with isocyanides to selectively afford alpha-diimines. The coupling reaction exhibits the advantages of high atom economy and convenient operation, with no need for any additive.