An Enantiomerically Pure Adamantylimido Molybdenum Alkylidene Complex. An Effective New Catalyst for Enantioselective Olefin Metathesis

An enantiomerically pure Mo-based complex that bears an alkylimido ligand is prepared and characterized through NMR spectroscopy and X-ray analysis. Mo complex 4 is the only reported chiral alkylimido catalyst; all previous chiral complexes are arylimido systems. These studies show that the chiral M...

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Bibliographic Details
Published in:Journal of the American Chemical Society 2003-03, Vol.125 (9), p.2591-2596
Main Authors: Tsang, W. C. Peter, Jernelius, Jesper A, Cortez, G. A, Weatherhead, Gabriel S, Schrock, Richard R, Hoveyda, Amir H
Format: Article
Language:English
Subjects:
Alkenes - chemistry
Boronic Acids - chemistry
Catalysis
Chemistry
Crystallography, X-Ray
Exact sciences and technology
Magnetic Resonance Spectroscopy
Molecular Structure
Molybdenum - chemistry
Organic chemistry
Organometallic Compounds - chemical synthesis
Organometallic Compounds - chemistry
Stereoisomerism
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Summary:An enantiomerically pure Mo-based complex that bears an alkylimido ligand is prepared and characterized through NMR spectroscopy and X-ray analysis. Mo complex 4 is the only reported chiral alkylimido catalyst; all previous chiral complexes are arylimido systems. These studies show that the chiral Mo catalyst exists exclusively as the syn isomer and that it offers unique reactivity and selectivity profiles in asymmetric olefin metathesis.
ISSN:0002-7863
1520-5126
DOI:10.1021/ja021204d