A Mechanistic Probe for Asymmetric Reactions: Deuterium Isotope Effects at Enantiotopic Groups
作者:Jason D. West、Sean E. Stafford、Matthew P. Meyer
DOI:10.1021/ja8026899
日期:2008.6.1
The development of a mechanisticprobe that is especially suitable for the study of asymmetric reactions is presented. Chemically innocuous enantiotopic methyl groups are utilized as probes for the distinct environments that develop at the transition state for the (-)-B-chlorodiisopinocampheylborane reduction of 4'-methylisobutyrophenone. 2H kinetic isotope effects (KIEs) are determined for both enantiotopic