Longer-Lived Ruthenium Olefin Metathesis Catalysts Supported by Hemi-Labile Carbene Ligands
申请人:The California State University - Northridge
公开号:US20210138444A1
公开(公告)日:2021-05-13
Contemplated subject matter disclosed herein relates generally to organometallic olefin metathesis catalysts, and more particularly to longer-lived olefin metathesis catalysts supported by hemi-labile carbene ligands that bear an arm with one or more donor ligands, as well as the use of such catalysts in metathesis reactions of olefins and olefin compounds. The contemplated subject matter has utility in the fields of catalysis, organic synthesis, polymer chemistry, and industrial and fine chemicals chemistry. This contemplated subject matter serves to reduce the cost of olefin metathesis (OM) processes including in olefin metathesis polymerizations, conversion of vegetable oils into chemicals, and processes in the petrochemical industry. This contemplated subject matter reduces the cost of OM processes by providing OM catalysts that are longer-lived and lead to higher turnover numbers, hence requiring less catalyst to convert a given amount of substrate(s). Considering that the OM catalyst is the most expensive part of some OM processes, longer-lived OM catalysts have the benefit of reducing the overall cost of the OM processes.
本文所披露的思考主题通常涉及有机金属烯烃交换催化剂,更具体地说,是由半脆性卡宾配体支持的长寿命烯烃交换催化剂,该配体带有一个或多个给体配体的臂,以及在烯烃和烯烃化合物的交换反应中使用此类催化剂。本文所思考的主题在催化、有机合成、聚合物化学以及工业和精细化学领域具有实用性。这个思考的主题有助于降低烯烃交换(OM)过程的成本,包括烯烃交换聚合、将植物油转化为化学品以及石化工业中的过程。这个思考的主题通过提供更长寿命的OM催化剂来降低OM过程的成本,并导致更高的周转次数,从而需要更少的催化剂来转化一定量的底物。考虑到OM催化剂是某些OM过程中最昂贵的部分,更长寿命的OM催化剂有助于降低OM过程的总体成本。