申请人:The Regents of the University of Colorado, a body corporate
公开号:US08993804B2
公开(公告)日:2015-03-31
The invention relates to highly active and selective catalysts for alkyne metathesis. In one aspect, the invention includes a multidentate organic ligand wherein one substrate-binding site of the metal center is blocked. In another aspect, the invention includes N-quaternized or silane-based multidentate organic ligands, capable of binding to metals. In yet another aspect, the invention includes N-quaternized or silane-based multidentate catalysts. The catalysts of the invention show high robustness, strong resistance to small alkyne polymerization and significantly enhanced catalytic activity compared to their corresponding non-quaternized or non-silane-based multidentate catalyst analogs.
本发明涉及用于炔烃交换反应的高活性和选择性催化剂。在一方面,本发明包括一种多配位有机配体,其中金属中心的一个底物结合位点被阻塞。在另一方面,本发明包括能够与金属结合的N-季铵化或硅烷基多配位有机配体。在另一方面,本发明包括N-季铵化或硅烷基多配位催化剂。本发明的催化剂表现出高度的韧性,强大的抗小炔烃聚合能力,并且与它们对应的非季铵化或非硅烷基多配位催化剂相比,显示出显著增强的催化活性。