Efficient Synthesis of Alkynylsilyl Ethers and Silaketals via Base-Induced Alkynylsilane Alcoholysis
journal contributionposted on 10.12.2004, 00:00 by Jonathan B. Grimm, Daesung Lee
The efficient silylation of alcohols with di- and trialkynylsilanes was achieved under base-catalyzed conditions to afford alkynyl silyl ethers and symmetrical alkynyl silaketals in good yield. A selective alcoholysis of dialkynyl silyl ethers to mixed silaketals was also demonstrated. These products served as substrates for enyne ring-closing metathesis and, consequently, as precursors to stereochemically defined 1,3-dienes.