A Comparison of Monocyclic and Bicyclic Phospholanes as Acyl-Transfer Catalysts
作者:E. Vedejs、O. Daugulis、L. A. Harper、J. A. MacKay、D. R. Powell
DOI:10.1021/jo030007+
日期:2003.6.1
The synthesis and evaluation of chiralphosphines 11, 15a, 19a, 24a, and 28a as nucleophilic catalysts for anhydride activation and kinetic resolution of alcohols is described. The relative reactivity follows the order 11a > 11b > 15a > 1 in the monocyclic series, and 24a > 19a > 28ain the bicyclic series, with an overall rate advantage of ca. 2 orders of magnitude for the bicyclic phospholanes over