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.
A Bifunctional MOF Catalyst Containing Metal–Phosphine and Lewis Acidic Active Sites
作者:Ram R. R. Prasad、Daniel M. Dawson、Paul A. Cox、Sharon E. Ashbrook、Paul A. Wright、Matthew L. Clarke
DOI:10.1002/chem.201803094
日期:2018.10.12
Post‐synthetic modification of the hafnium metal–organicframework MOF‐808(Hf) to include triarylphosphine ligands is reported. Sulfonated phenylphosphines are incorporated without oxidation to give a “MOF ligand” that can complex late transition metals such as Ir and Rh to give a bifunctional catalyst containing both metal–phosphine complexes and the Lewis acidic framework hafnium metalsites. The