Lewis Base-Catalysed Mukaiyama–Aldol Reaction of Trimethylsilyl Enolates with Aldehydes
作者:Xingxian Zhang、Junchen Shi、Shenghui Hu
DOI:10.3184/030823410x12733354109885
日期:2010.5
efficient Mukaiyama-type aldolreaction of three typical silyl enolates, such as 1-(trimethylsiloxy)-1-methoxy-2-methyl-2-propene, 1-phenyl-1-trimethylsilyloxyethene and 1, 2-bis(trimethylsiloxy)cyclobutene, with aryl aldehydes and α,β–unsaturated aldehydes catalysed by 5 mol% of Lewis base catalyst 4-O2NPhOMgI in dichloromethane is described. The reaction proceeds under mild reaction conditions in good