A 2′-diarylphosphino-1,1′-biphenylen-2-yloxy(6,6′-divinyl-1,1′-binaphthalene-2,2′-diyloxy)phosphine derivative is disclosed, which is represented by general formula (I): 
wherein Ar is an optionally substituted phenyl or naphthyl; R1 and R2 each independently is a hydrogen atom, a lower alkyl, a lower alkoxy, etc.; and R3 is a lower alkyl, a lower alkoxy, etc.; provided that R2 and R3 may be bonded to each other to form a hydrocarbon ring, which may have one or more substituents selected from lower alkyl groups, halogen atoms, vinyl, etc. Also disclosed are a polymer having structural units derived from the phosphine derivative and a transition metal complex obtained by causing a transition metal compound to act on the phosphine derivative.
                            一种2'-二芳基膦氧基-1,1'-
联苯-2-亚氧基(6,6'-二
乙烯基-
1,1'-联萘-2,2'-二氧基)膦衍
生物被公开,其由通用公式(I)表示:
其中Ar是可选地取代的苯基或
萘基;R1和R2各自独立地是一个氢原子、低级烷基、低级烷氧基等;R3是低级烷基、低级烷氧基等;前提是R2和R3可以相互连接形成一个烃环,该环可以选择性地从一个或多个低级烷基组、卤素原子、
乙烯基等中取代。还公开了一种由膦衍
生物派生的结构单元的聚合物,以及通过使过渡
金属化合物作用于膦衍
生物而获得的过渡
金属配合物。