申请人:Takasago International Corporation
公开号:US06022936A1
公开(公告)日:2000-02-08
A 6-vinyl-2'-diarylphosphino-1,1'-binaphthalen-2-yloxy(biphenylene-2,2'-diyl oxy)phosphine derivative is disclosed, which is represented by general formula (I): ##STR1## wherein Ar is an optionally substituted phenyl or naphthyl; R.sup.1 and R.sup.2 each independently is a hydrogen atom, a lower alkyl, a lower alkoxy, etc.; and R.sup.3 is a lower alkyl, a lower alkoxy, etc.; provided that R.sup.2 and R.sup.3 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 or the polymer. A novel polymer-supported ligand is provided which, when used as a catalyst for asymmetric syntheses, gives satisfactory results concerning catalytic activity, enantiomer excess, etc.
本文披露了一种6-乙烯基-2'-二芳基膦基-1,1'-二萘-2-氧基(联苯-2,2'-二基氧)膦衍生物,其通式为(I):##STR1## 其中Ar是可选择取代的苯基或萘基;R1和R2各自独立地是氢原子、低碳基、低烷氧基等;而R3是低碳基、低烷氧基等;但是,R2和R3可以连接在一起形成一个碳氢环,该环可以具有一个或多个选自低碳基团、卤素原子、乙烯等的取代基。此外,本文还披露了一种由膦衍生物结构单元衍生的聚合物以及通过将过渡金属化合物作用于膦衍生物或聚合物而获得的过渡金属配合物。本文还提供了一种新型聚合物支撑的配体,当用作不对称合成的催化剂时,可以得到令人满意的催化活性、对映异构体过量等结果。