Highly Active Ruthenium Catalysts for Olefin Metathesis: The Synergy of N-Heterocyclic Carbenes and Coordinatively Labile Ligands.
作者信息
Weskamp T, Kohl FJ, Hieringer W, Gleich D, Herrmann WA
机构信息
Anorganisch-chemisches Institut der Technischen Universität München, Lichtenbergstrasse 4, D-85747 Garching (Germany).
出版信息
Angew Chem Int Ed Engl. 1999 Aug;38(16):2416-2419. doi: 10.1002/(sici)1521-3773(19990816)38:16<2416::aid-anie2416>3.0.co;2-#.
Abstract
Two N-heterocyclic carbene ligands at once may be one too many, at least if you intend to have highly active ruthenium catalysts for olefin metathesis. Density functional calculations recommend the replacement of the second carbene ligand in the successful ROMP catalysts 1 by coordinatively more labile ligands as in 2 or 3. In both cases, the catalytic activity is greatly improved.
摘要
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