Weak Coordination Promoted Regioselective Oxidative Coupling Reaction for 2,2′-Difunctional Biaryl Synthesis in Hexafluoro-2-propanol
作者:Chao Zhang、Yu Rao
DOI:10.1021/acs.orglett.5b02115
日期:2015.9.18
An unprecedented weak coordination promoted dehydrogenative cross-coupling reaction has been developed by palladium catalysis, which provides a convenient access to a wide range of 2,2′-difunctional biaryls from easily accessible substrates. Both HFIP solvent and oxidants serve as the critical factors in this new reaction. A plausible mechanism involving Pd(II)/Pd(IV) is proposed. The reaction demonstrates
钯催化已开发出前所未有的弱配位促进的脱氢交叉偶联反应,钯催化可从易于接近的底物方便地获得各种2,2'-双官能联芳基。HFIP溶剂和氧化剂都是这一新反应的关键因素。提出了涉及Pd(II)/ Pd(IV)的合理机制。该反应显示出优异的反应性,宽泛的官能团耐受性和高产率。