[RhCl(3az)(CO)2] 5az, which was prepared by replacing the COD ligand of 4az with CO. The potential of novel complex 4az as a chiral catalyst was investigated in the Rh-catalyzed asymmetric ring-opening reaction of oxabenzonorbornadienes with amines, and the corresponding products were afforded in good yields with good enantioselectivities (up to 81% ee).
合成了一种带有手性双环 NHC
配体 [RhCl( 3az )(cod)] 4az的
铑配合物,并通过 X 射线衍射分析、高分辨率质谱和多核 NMR 光谱对其进行了充分表征。NHC
配体3az的电子和空间特性通过红外测量和 X 射线衍射分析对用 CO 代替4az的 COD
配体制备的二羰基配合物 [RhCl( 3az )(CO) 2 ] 5az进行了评价。小说复杂的4az作为手性催化剂,在Rh催化的氧代苯并降
冰片二烯与胺的不对称开环反应中进行了研究,并以良好的收率和良好的对映选择性(高达81% ee)提供了相应的产物。