Stereoselective Rh-Catalyzed Hydrogenative Desymmetrization of Achiral Substituted 1,4-Dienes
作者:Héctor Fernández-Pérez、Joan R. Lao、Anton Vidal-Ferran
DOI:10.1021/acs.orglett.6b01088
日期:2016.6.17
Highly efficient catalytic stereoselective hydrogenative desymmetrization reactions mediated by rhodium complexes derived from enantiopure phosphine–phosphite (P–OP) ligands are described. The highest performing ligand, which contains a TADDOL-derived phosphite fragment [TADDOL = (2,2-dimethyl-1,3-dioxolane-4,5-diyl)bis(diphenylmethanol)], presented excellent catalytic properties for the desymmetrization
描述了由对映体纯膦-亚磷酸酯(P-OP)配体衍生的铑配合物介导的高效催化立体选择性加氢脱对称反应。最高性能的配体,其中包含TADDOL衍生的亚磷酸酯片段[TADDOL =(2,2-二甲基-1,3-二氧戊环-4,5-二基)双(二苯基甲醇)],具有出色的催化性能,可用于脱甲基一组非手性1,4-二烯,提供了选择性形成多种对映体富集的仲和叔醇的方法(六个实例,最高可达92%ee)。