Brønsted acid differentiated metal catalysis by kinetic discrimination
作者:Magnus Rueping、René M. Koenigs
DOI:10.1039/c0cc02167a
日期:——
A Brønsted acid differentiated metal catalyzed hydrogenation has been developed. A combinatorial variation of chiral triflylamides with achiral metal complexes results in a highly active catalyst for the asymmetric reduction.
Asymmetric transfer hydrogenation of quinoline derivatives catalyzed by chiral iridium-imidazoline complex in water
作者:Huimin Qi、Lixian Wang、Qiangsheng Sun、Wei Sun
DOI:10.1016/j.mcat.2022.112715
日期:2022.11
A stable iridium catalyst bearing a chiral 2-pyridyl imidazolineligand is described for the asymmetric transfer hydrogenation (ATH) of quinolines and N-heteroaryl compounds. This ATH system employs formic acid as the hydrogen source and water as the solvent. Various quinolines and N-heteroaryl compounds can be efficiently converted into desired products with moderate to good enantioselectiviy at as
描述了一种带有手性 2-吡啶基咪唑啉配体的稳定铱催化剂,用于喹啉和 N-杂芳基化合物的不对称转移氢化 (ATH)。该 ATH 系统使用甲酸作为氢源,水作为溶剂。各种喹啉和 N-杂芳基化合物可以在温和条件下以低至 0.001 mol% 的催化剂负载量有效地转化为具有中等至良好对映选择性的所需产物。