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Base-catalyzed addition of silylacetylenes to ketones: a route to protected tertiary propargyl alcohols†
Krzysztof Kuciński,Alicja Łuczak,Aliaksei Mankouski,Grzegorz Hreczycho
Organic Chemistry Frontiers Pub Date : 05/09/2023 00:00:00 , DOI:10.1039/D3QO00579H
Abstract

The base-catalyzed addition of alkynylsilanes to ketone derivatives enables the formation of various silyl-protected propargylic alcohols. Commercially available and inexpensive potassium bis(trimethylsilyl)amide (KHMDS) serves as an efficient transition metal-free catalyst and permits the functionalization of a variety of derivatives, including pharmaceuticals and biorelevant compounds. Overall, the presented system complements classical routes to protected tertiary propargylic alcohols that mainly rely on stoichiometric processes or fluoride-mediated reactions.

Graphical abstract: Base-catalyzed addition of silylacetylenes to ketones: a route to protected tertiary propargyl alcohols
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