The Pd-catalyzed enantioselective ring-opening reaction of meso oxaand azabicyclic alkenes with dialkylzinc reagents reported by Lautens et al.1 constitutes a synthetically outstanding C C bond-forming desymmetrization reaction. Herein we describe that cationic methyl PdII complexes of Fesulphos ligands2 serve as excellent catalysts for this asymmetric transformation, allowing the performance of the
Lautens 等人 1 报道的 Pd 催化的内消旋氧杂和
氮杂双环烯烃与二烷基
锌试剂的对映选择性开环反应构成了合成上出色的 CC 键形成去对称化反应。在本文中,我们描述了 Fesulphos
配体的阳离子甲基 PdII 配合物 2 作为这种不对称转化的极好催化剂,允许在非常低的催化剂负载下进行反应。