Palladium(II) mediated aziridination of olefins with bromamine-T as the nitrogen source: scope and mechanism
作者:Alexandra M.M. Antunes、Vasco D.B. Bonifácio、Susana C.C. Nascimento、Ana M. Lobo、Paula S. Branco、Sundaresan Prabhakar
DOI:10.1016/j.tet.2007.05.020
日期:2007.7
The palladium(II)-promoted reaction of a variety of olefins and bromamine-T provided N-tosyl-2-substituted aziridines under mild conditions. Olefins bearing chiral appendages gave only a poor to modest diastereoselectivity. Appropriate deuterated olefins were selected to study the stereochemistry of the reaction. A Pd(IV) intermediate is proposed as the aziridinating species. (C) 2007 Elsevier Ltd. All rights reserved.
Ligands cycliques azotés, complexes métalliques formés par ces ligands, compositions de diagnostic contenant ces complexes et procédé de préparation des ligands