Cp*Rh(<scp>iii</scp>)/boron hybrid catalysis for directed C–H addition to β-substituted α,β-unsaturated carboxylic acids
作者:Ryo Tanaka、Yuki Hirata、Masahiro Kojima、Tatsuhiko Yoshino、Shigeki Matsunaga
DOI:10.1039/d1cc05956d
日期:——
The C–H bond addition reaction of 2-phenylpyridine derivatives with α,β-unsaturated carboxylic acids catalyzed by Cp*Rh(III)/BH3·SMe2 is reported. Activation of C–H bonds with the rhodium catalyst and activation of α,β-unsaturated carboxylic acids with the boron catalyst cooperatively work, and a BINOL-urea hybrid ligand significantly improved the reactivity. With the optimized hybrid catalytic system
报道了由Cp*Rh( III )/BH 3 ·SMe 2催化的2-苯基吡啶衍生物与α,β-不饱和羧酸的C-H键加成反应。用铑催化剂活化C-H键和用硼催化剂活化α,β-不饱和羧酸协同工作,BINOL-尿素杂化配体显着提高了反应活性。使用优化的混合催化体系,在温和的反应条件下获得了各种 β-二取代羧酸。