Polymer having bis(diphenylphosphino)binaphthyl groups

摘要

A polymer having bis(diphenylphosphino)binaphthyl groups that can be used as a catalyst for an addition reaction, especially an asymmetric 1,4-addition reaction, or a reduction reaction, especially an asymmetric reduction reaction, and that can be easily recovered and recycled. The polymer having the bis(diphenylphosphino)binaphthyl groups is one resulting from repetition of a racemic or optically active 2,2′-bis(diphenylphosphino)-1,1′-binaphthyl compound substituted at 5-position thereof with an unsaturated terminal of one (meth)acryloyl group of a compound having multiple (meth)acryloyl groups, that another 2,2′-bis(diphenylphosphino)-1,1′-binaphthyl compound of a next unit is substituted at 5′-position thereof with an unsaturated terminal of another (meth)acryloyl group of the compound having multiple (meth)acryloyl groups so as to have a molecular weight of 1500 to 10000. The reduction catalyst comprises this polymer and a transition metal.

主权项

1. A polymer having bis(diphenylphosphino)binaphthyl groups comprising:
monomer-units selected from the group consisting of monomer-units of formulae [6], [9], [10], and [13]: wherein R1 and R2 are each independently a group comprising a straight, branched or cyclic aliphatic group, an aromatic group, or a polyether group, and wherein R1 and R2 may be each independently substituted by a functional group, and wherein a molecular weight of the polymer is in a range of from 1500 to 10000.