Increased ring closing metathesis activity of ruthenium-based olefin metathesis catalysts coordinated with imidazolin-2-ylidene ligands
Increased ring closing metathesis activity of ruthenium-based olefin metathesis catalysts coordinated with imidazolin-2-ylidene ligands
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DOI：
10.1016/s0040-4039(99)00217-8
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发表时间：
1999-03-19
影响因子：
1.8
通讯作者：
Grubbs, RH
中科院分区：
文献类型：
--
作者：
Scholl, M;Trnka, TM;Grubbs, RH
以RuCl2(=CHPh)(PCy3)(2) 2为起始原料制备了新型耐空气和水的咪唑啉取代钌基配合物3，与母体配合物2相比，该配合物在高温下具有更高的合环复分解活性。在催化量为3的条件下，以相应的二烯前驱体成功地制备了二、三、甚至四取代的环烯烃。1999爱思唯尔科学有限公司版权所有。
The novel air and water tolerant, imidazolinylidene-substituted ruthenium-based complex 3, has been prepared starting from RuCl2(=CHPh)(PCy3)(2) 2 and shown to exhibit increased ring-closing metathesis activity at elevated temperature compared to that of the parent complex 2. Di-, tri-, and even tetra-substituted cycloolefins were successfully prepared from corresponding diene precursors using catalytic amounts of 3 in moderate to excellent yields. (C) 1999 Elsevier Science Ltd. All rights reserved.