Singly Hydrogen Bonded Supramolecular Ligands for Highly Selective Rhodium-Catalyzed Hydrogenation Reactions
作者:Pierre-Alain R. Breuil、Frederic W. Patureau、Joost N. H. Reek
DOI:10.1002/anie.200806177
日期:2009.3.9
catalysts! A single hydrogen bond between ligands coordinated to a rhodium center is critical for the formation of pure supramolecular catalysts for asymmetric hydrogenation reactions. The ester group of the amidite ligand (see scheme) also forms a hydrogen bond with the coordinated substrate. Use of the heterocomplex afforded the highest enantioselectivity reported to date for the hydrogenation of several
H键是催化剂!与铑中心配位的配体之间的单个氢键对于形成用于不对称氢化反应的纯超分子催化剂至关重要。酰胺基配体的酯基(参见方案)也与配位的底物形成氢键。杂合物的使用提供了迄今为止报道的几种酯底物氢化的最高对映选择性。