Z-Selective Alkene Isomerization by High-Spin Cobalt (II) Complexes

…, WW Brennessel, DJ Weix, PL Holland

文献索引：Chen, Chi; Dugan, Thomas R.; Brennessel, William W.; Weix, Daniel J.; Holland, Patrick L. Journal of the American Chemical Society, 2014 , vol. 136, # 3 p. 945 - 955

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被引用次数: 52

摘要

The isomerization of simple terminal alkenes to internal isomers with Z-stereochemistry is rare, because the more stable E-isomers are typically formed. We show here that cobalt (II) catalysts supported by bulky β-diketiminate ligands have the appropriate kinetic selectivity to catalyze the isomerization of some simple 1-alkenes specifically to the 2-alkene as the less stable Z-isomer. The catalysis proceeds via an “alkyl” mechanism, with a three-coordinate ...