Fine-Tuning of Modular Amino Alcohol Ligands for the Enantioselective Transfer Hydrogenation of Ketones
作者:Mireia Pastó、Antoni Riera、Miquel A. Pericàs
DOI:10.1002/1099-0690(200207)2002:14<2337::aid-ejoc2337>3.0.co;2-q
日期:2002.7
stereodefined, modular amino alcohols (3-alkoxy-1-amino-1-phenyl-2-propanols), in which the steric bulk of the alkoxy and amino substituents varies smoothly, has been synthesized from enantiomerically pure phenylglycidol, prepared by Sharpless epoxidation. These amino alcohols have been evaluated as ligands in the catalyzed [(amino alcohol)(arene)RuII] transfer hydrogenation of alkyl aryl ketones,
一系列立体定义的模块化氨基醇(3-烷氧基-1-氨基-1-苯基-2-丙醇),其中烷氧基和氨基取代基的空间体积变化平稳,已从对映体纯苯基缩水甘油合成,制备如下无锐环氧化。这些氨基醇已被评估为催化 [(氨基醇)(芳烃)RuII] 烷基芳基酮转移氢化中的配体,2-丙醇作为氢源。氮取代基和烷氧基均已针对所考虑的过程中的最大对映选择性和催化活性进行了优化。(© Wiley-VCH Verlag GmbH, 69451 Weinheim, Germany, 2002)