申请人:Shimada Toyoshi
公开号:US20100022800A1
公开(公告)日:2010-01-28
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.
具有双(二苯基膦)联萘基团的聚合物可用作催化剂,特别是用于加成反应,尤其是不对称的1,4-加成反应,或还原反应,特别是不对称还原反应,并且可以轻松回收和循环利用。具有双(二苯基膦)联萘基团的聚合物是由重复使用在其5位取代有一种具有多个(甲基)丙烯酰基团的化合物的不对称或光学活性2,2′-双(二苯基膦)-1,1′-联萘化合物所得,下一个单元的另一种2,2′-双(二苯基膦)-1,1′-联萘化合物在其5′位取代有另一种具有多个(甲基)丙烯酰基团的化合物的不饱和末端,以使其分子量为1500至10000。还原催化剂包括该聚合物和过渡金属。