Regioselectivity in the Aryne Cross-Coupling of Aryllithiums with Functionalized 1,2-Dibromobenzenes
作者:Vincent Diemer、Manon Begaud、Frédéric R. Leroux、Françoise Colobert
DOI:10.1002/ejoc.201001283
日期:2011.1
Tri- and tetrasubstituted ortho-bromobiaryls have been synthesized in good-to-excellent yields by arynecross-coupling reactions starting from 1,3-dimethoxybenzene and functionalized1,2-dibromobenzenes. This study outlines the influence of the 1,2-dibromobenzene precursor as well as the reaction temperature on the outcome of the aryl-aryl bond formation and indicates, in the case of dissymmetrical