Michael Addition of Amine Derivatives to Conjugate Phosphinyl and Phosphonyl Nitrosoalkenes. Preparation of α-Amino Phosphine Oxide and Phosphonate Derivatives
作者:Jesús M. de los Santos、Roberto Ignacio、Domitila Aparicio、Francisco Palacios
DOI:10.1021/jo0705521
日期:2007.7.1
The synthesis of nitrosoalkenes derived from phosphine oxides and phosphonates generated through base-mediated dehydrohalogenations of readily available α-halooximes is reported. These highly reactive intermediates act as Michael acceptors toward nucleophilic reagents such as ammonia, amines, and optically active amino esters, furnishing α-amino phosphine oxides and phosphonates in a highly regioselective