A method for preparing an enantiomeric chromane, by asymmetrically hydrogenating a chromene compound in the presence of an Ir catalyst having a chiral ligand. The method includes the enantioselective preparation of enantiomeric equol. A preferred Ir catalyst has a chiral phosphineoxazoline ligand. Enantiomeric chromanes of high stereoselective purity can be obtained.
一种制备对映异构体色苷的方法,通过在具有手性
配体的Ir催化剂存在下,对色烯化合物进行不对称氢化。该方法包括对对映异构体色苷的对映选择性制备。首选的Ir催化剂具有手性膦氧唑啉
配体。可以获得高立体选择性纯度的对映异构体色苷。