Carbenes As Catalysts for Transformations of Organometallic Iron Complexes
- 23 October 2009
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 326 (5952), 559-562
- https://doi.org/10.1126/science.1178919
Abstract
Stretching Carbene Versatility: Stable N-heterocyclic carbene (NHC) molecules are versatile catalysts for organic reactions (see the Perspective by Albrecht ). Lavallo and Grubbs (p. 559 ) now show that these molecules can also catalyze organometallic transformations. Specifically, the carbenes induce coupling of monomeric iron olefin complexes to form clusters incorporating three or four bonded iron centers. Initial coordination of carbene to iron may facilitate formation of an iron-iron bond with a second complex. In a related development, Aldeco-Perez et al. (p. 556 ) prepared an NHC isomer in which the divalent carbon is shifted so that it no longer lies between the nitrogens. The compound forms stable complexes with both gold and CO 2 .Keywords
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