The present invention is related to a new chiral biphenyl diphosphine ligand of formula (I), wherein R1, R2, and R3 are independently H, alkyl or aryl; R6 and R7 is independently a substituent; and A is independently aryl or heteroaryl, optionally substituted by one or more substituents, or a stereoisomer thereof, or a stereoisomeric mixture thereof.
本发明涉及一种新的手性
联苯二
膦配体,其
化学式为(I),其中R1、R2和R3分别为H、烷基或芳基;R6和R7分别为取代基;A为芳基或杂环芳基,可以选择性地被一个或多个取代基取代,或其立体异构体,或其立体异构混合物。