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.
α-烷基
硫代取代的α,β-不饱和1,4-二酮化合物,具有三种不同的功能,能够通过
硫鎓盐与各种芳香或脂肪醛
水合物的缩合反应,使用Na2SeO3或
二氧化硒和Na2CO3的组合催化方便地合成。