申请人:The Penn State Research Foundation
公开号:US07538228B2
公开(公告)日:2009-05-26
A chiral ligand represented by the formula and its enantiomer:
wherein A, X, Y and Z are as defined in the specification is provided. Also provided is a process of making the chiral ligands and catalysts prepared from these ligands and a transition metal, a salt thereof or a complex thereof. In addition, a method of preparing an asymmetric compound by a transition metal catalyzed asymmetric reaction, such as, hydrogenation, hydride transfer reaction, hydrosilylation, hydroboration, hydrovinylation, hydroformylation, hydrocarboxylation, allylic alkylation, epoxidation, cyclopropanation, Diels-Alder reaction, Aldol reaction, ene reaction, Heck reaction and Michael addition is provided.
提供了一种由以下公式表示的手性配体及其对映体:其中A、X、Y和Z如规范中所定义。还提供了制备这些配体和与过渡金属、其盐或其配合物制备的催化剂的过程。此外,还提供了一种通过过渡金属催化的不对称反应(如氢化、氢化物转移反应、氢硅化、氢硼化、氢乙烯化、水合甲酰化、水合羧化、烯丙基烷基化、环氧化、环丙烷化、Diels-Alder反应、Aldol反应、烯反应、Heck反应和Michael加成)制备不对称化合物的方法。