Efficient Synthesis of Alkynylsilyl Ethers and Silaketals via Base-Induced Alkynylsilane Alcoholysis
摘要:
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.
Efficient Synthesis of Alkynylsilyl Ethers and Silaketals via Base-Induced Alkynylsilane Alcoholysis
摘要:
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.
Efficient Synthesis of Alkynylsilyl Ethers and Silaketals via Base-Induced Alkynylsilane Alcoholysis
作者:Jonathan B. Grimm、Daesung Lee
DOI:10.1021/jo048908l
日期:2004.12.1
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.