Efficient Condensation between
Glyoxal Hydrates and Sulfonium Salts Leading to Highly
Functionalized 1,4-Diketones
作者:Chunbao Li、Qiyun Shao
DOI:10.1055/s-2008-1078267
日期:——
α-Alkylthio-substituted α,β-unsaturated 1,4-dicarbonyl compounds with three different functionalities are easily available through condensation of sulfonium salts and various aromatic or aliphatic glyoxal hydrates catalyzed by Na2SeO3 or a combination of selenium dioxide and Na2CO3.