Enantiotopic Discrimination in Palladium-Mediated Nucleophilic Substitutions on Achiral Substrates: Chiral Ligand versus Chiral Nucleophile
作者:Jean-Claude Fiaud、Jean Ollivier、Olivier Jacquet、Florence Charnay
DOI:10.1055/s-0029-1216896
日期:2009.9
reaction performed on an achiral allylic ester using a chiral ligand-achiral nucleophile couple or a achiral ligand-chiral nucleophile couple, afforded optically enriched β-vinylcyclohexenyl amines. Thus, the hypothesis of a differentiation between two diastereotopic allylic sites of a π-allyl palladium complex by a nucleophile, confirm previous observations. nucleophilic substitutions - π-allyl palladium
使用手性配体-非手性亲核体对或非手性配体-手性亲核体对非手性烯丙基酯进行Tsuji-Trost反应,得到光学富集的β-乙烯基环己烯基胺。因此,通过亲核试剂区分π-烯丙基钯配合物的两个非对位烯丙基位点之间的假说,证实了先前的观察结果。 亲核取代-π-烯丙基钯配合物-环亚丙基-环己烯-胺