The bis(carbonyl) manganese(I) complex [Mn(CO)2 (1)]Br (2) with a chiral (NH)2 P2 macrocyclic ligand (1) catalyzes the asymmetric transfer hydrogenation of polar double bonds with 2-propanol as the hydrogen source. Ketones (43 substrates) are reduced to alcohols in high yields (up to >99 %) and with excellent enantioselectivities (90-99 % ee). A stereochemical model based on attractive CH-π interactions
具有手性(NH)2 P2大环
配体(1)的双(羰基)
锰(I)配合物[Mn(CO)2(1)] Br(2)催化2-
丙醇对极性双键的不对称转移加氢反应作为氢源 酮(43种底物)以高收率(高达> 99%)和出色的对映选择性(90-99%ee)被还原为醇。提出了基于有吸引力的CH-π相互作用的立体
化学模型。