Use of molecular weight-enlarged catalysts in a process for asymmetric, continous hydrogenation, novel molecular weight-enlarged ligands and catalysts
申请人:Degussa-Huels Aktiengesellschaft
公开号:US20020016513A1
公开(公告)日:2002-02-07
The first embodiment of the present invention provides a process, which includes:
in a continuous process in a membrane reactor, asymmetrically hydrogenating at least one C=C, C=N or C=O double bond with a catalyst. Another embodiment of the present invention provides a ligand, which includes at least one di-1,3-aminophosphine homochiral active center; optionally, a linker; and a molecular weight-enlarging polymer; wherein the active center is bound to the molecular weight-enlarging polymer through the linker or is bound directly to the molecular weight-enlarging polymer; and wherein the linker is defined in the claims. Another embodiment of the present invention provides a process for preparing the above-noted ligand, and a catalyst that includes the above-noted ligand.
本发明的第一实施例提供了一种过程,其中包括:在膜反应器中的连续过程中,使用催化剂不对称地氢化至少一个C=C、C=N或C=O双键。本发明的另一实施例提供了一种配体,其中包括至少一个二-1,3-氨基膦手性活性中心;可选地,一个连接物;以及一个分子量扩大聚合物;其中活性中心通过连接物与分子量扩大聚合物结合,或者直接与分子量扩大聚合物结合;连接物在权利要求中有定义。本发明的另一实施例提供了制备上述配体的过程,以及包括上述配体的催化剂。