An iridiumcatalyst enables the reductive amination of carbonylgroups with unprecedented substrate scope, selectivity, and activity using formic acid as the hydrogen source (see scheme). The catalyst system provides significant improvement over commonly used boron hydrides.
作者:Jia-Xing Jiang、Chao Wang、Andrea Laybourn、Tom Hasell、Rob Clowes、Yaroslav Z. Khimyak、Jianliang Xiao、Simon J. Higgins、Dave J. Adams、Andrew I. Cooper
DOI:10.1002/anie.201005864
日期:2011.2.1
Two versatile strategies for preparing metal–organic conjugated microporous polymers (MO‐CMPs) containing metals such as rhenium, rhodium, and iridium are described (see example). These materials combine the uninterrupted extended electronic conjugation in the network with catalytically active metal sites.