Novel soluble polyester-supported chiral phosphines have been prepared and have been used in the preparation of rhodium and ruthenium catalysts. Such polymer-supported catalysts show high catalytic activities and enantioselectivities. In the case of Ru(BINAP) catalyst supported on soluble polyester, the resulting catalysts were found to be more active than those of the corresponding homogeneous Ru(BINAP) catalysts in the asymmetric hydrogenation of 2-arylpropenoic acids. These soluble polyester-supported catalysts can be easily separated from the reaction mixture and then be reused without loss of activity and selectivity.
已经制备了新型可溶性聚酯支撑手性膦,并用于
铑和
钌催化剂的制备。这种聚合物支撑的催化剂表现出高催化活性和对映选择性。在可溶性聚酯支撑的Ru(BINAP)催化剂的情况下,所得到的催化剂在2-芳基
丙烯酸的不对称氢化反应中比相应的均相Ru(BINAP)催化剂更为活性。这些可溶性聚酯支撑的催化剂可以很容易地从反应混合物中分离出来,然后重复使用而不会失去活性和选择性。