Iron‐Catalyzed Room Temperature Cross‐Couplings of Bromophenols with Aryl Grignard Reagents
作者:Li‐Chen Xu、Kun‐Ming Liu、Xin‐Fang Duan
DOI:10.1002/adsc.201900839
日期:2019.12.3
Herein we report a room temperature Fe‐catalyzed coupling reaction of various bromophenols with aryl Grignard reagents, which exhibits a wide substrate scope and high functional group tolerance. For the first time, the combination of simple Fe(acac)3/PBu3/Ti(OEt)4 has been used as an effective catalyst for the biaryl couplings of bromophenols or their Na or K salts with debromination and etherification
本文报道了各种溴酚与芳基格氏试剂的室温铁催化偶联反应,该反应具有较宽的底物范围和较高的官能团耐受性。首次将简单的Fe(acac)3 / PBu 3 / Ti(OEt)4的组合用作溴酚或其Na或K盐的联芳基偶联的有效催化剂,脱溴和醚化副反应很好压抑。使用本方案可轻松合成各种双酚,包括天然产物garbibiphenyl C以及药用双氟尼醛及其乙酯。