Preparative Organic Chemistry
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ChemInform Abstract: Tetraphenylphosphonium Hydrogendifluoride: A New Catalyst for Silyl- Mediated Aldol Reaction and the Addition of Silylacetylenes to Carbonyl Compounds.
First published: March 12, 1996
Abstract
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ChemInform Abstract
Tetraphenylphosphonium hydrogendifluoride, known as a surprisingly powerful source of fluoride ion, is an effective and convenient catalyst for the aldol reaction of silyl enol ethers (I) or (IV) with aldehydes (II) or the Grignard-type addition reaction of the silylacetylene (VI) to carbonyl compounds (VII).
