Robust Alkyne Metathesis Catalyzed by Air Stable d2 Re(V) Alkylidyne Complexes

Journal of the American Chemical Society
Mingxu CuiGuochen Jia

Abstract

We report in this communication the first example of catalytic alkyne metathesis reactions mediated by well-defined non-d0 alkylidyne complexes. The air-stable d2 Re(V) alkylidyne complex Re4, bearing two PO-chelating ligands and a labile pyridine ligand, could catalyze homometathesis of internal alkynes with a broad substrate scope, including alcohols, amines, and even carboxylic acids. The catalyst can tolerate heating, air, and moisture in both solid and solution states, and the catalytic metathesis reactions could proceed normally in wet solvents.

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Citations

Aug 22, 2020·Angewandte Chemie·Alois FürstnerChristophe Copéret
Feb 20, 2021·Nature Communications·Yanqing GeWei Zhang
Apr 8, 2021·Journal of the American Chemical Society·Alexander HaackAlois Fürstner
Aug 6, 2021·Chemical Science·Shaofeng HuangWei Zhang
Sep 15, 2021·Journal of the American Chemical Society·Alois Fürstner

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