Starting from the optically active PH phospholanes diopholane HPDph and tarpholane HPTph, the phosphido bridged complexes 1–6 were prepared and characterized. Complexes 2 and 3 exist as two diastereomers differing only in the configuration of the Mo atom. The temperature dependence of the 1H NMR spectra of these complexes reveals an intramolecular fluxional process. The rhodium complexes 4–6 were
从光学活性PHphospholanes开始diopholane HPDph和tarpholane H
PTph,所述膦桥接络合物1 - 6制备和表征。络合物2和3作为两个非对映异构体而存在,仅在Mo原子的构型上不同。这些配合物的1 H NMR光谱对温度的依赖性揭示了分子内的通量过程。
铑络合物4 - 6被用作在α乙基
苯乙烯的氢化催化剂对映选择性,并与二苯基
硅烷苯乙酮氢化
硅烷化。