Tris(pentafluorophenyl)silyl enol ethers: synthesis and aldol reactions
摘要:
Silyl enol ethers bearing three pentafluorophenyl groups at the silicon atom are described. These Compounds undergo uncatalyzed aldol reactions with aliphatic, alpha,beta-unsaturated, and aromatic aldehydes. The observed reactivity is analyzed in terms of the Lewis acidity of the silyl fragment. (C) 2004 Elsevier Ltd. All rights reserved.