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Platinum-Catalyzed Hydrative Dimerization of Alkynylsilanes to α,β-Unsaturated Ketones. | LitMetric

Platinum-Catalyzed Hydrative Dimerization of Alkynylsilanes to α,β-Unsaturated Ketones.

Org Lett

Department of Applied Chemistry, Graduate School of Science and Engineering, Saitama University, 255 Shimo-ohkubo, Sakura-ku, Saitama 338-8570, Japan.

Published: July 2024

A unique type of platinum catalysis that is valuable for the synthesis of α,β-unsaturated ketones is described. In the presence of PtCl, (2-arylethynyl)trimethylsilanes reacted with HO at 30 °C to give 1,4-diarylbut-3-en-2-ones in moderate to good yields. (2-Alkylethynyl)trimethylsilanes could be efficiently converted into the corresponding hydrative dimerization products by a modified Pt catalyst system. Mechanistic studies suggest the participation of acylplatinum intermediates in the catalytic cycle.

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http://dx.doi.org/10.1021/acs.orglett.4c01735DOI Listing

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