Synthesis of Linear (Z)-α,β-Unsaturated Esters by Catalytic Cross-Metathesis. The Influence of Acetonitrile
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Author(s) • • • •
Yu, Elsie C.
Johnson, Brett M.
Hoveyda, Amir H.
Townsend, Erik M.
Schrock, Richard Royce
Date Issued
October 2016
Journal
Angewandte Chemie International Edition
Publisher
Wiley-Blackwell
Citation
Yu, Elsie C., et al. “Synthesis of Linear ( Z )-α,β-Unsaturated Esters by Catalytic Cross-Metathesis. The Influence of Acetonitrile.” Angewandte Chemie International Edition, vol. 55, no. 42, Oct. 2016, pp. 13210–14.
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Author's final manuscript
Abstract
Kinetically controlled catalytic cross-metathesis reactions that generate (Z)-α,β-unsaturated esters selectively are disclosed. A key finding is that the presence of acetonitrile obviates the need for using excess amounts of a more valuable terminal alkene substrates. On the basis of X-ray structure and spectroscopic investigations a rationale for the positive impact of acetonitrile is provided. Transformations leading to various E,Z-dienoates are highly Z-selective as well. Utility is highlighted by application to stereoselective synthesis of the C1–C12 fragment of biologically active natural product (−)-laulimalide.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
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DOI of Published Version
https://doi.org/10.1002/ANIE.201608087