The direct thioesterification of aldehydes with disulfides via NHC-catalyzed carbonyl umpolung strategy
作者:Santosh Singh、Lal Dhar S. Yadav
DOI:10.1016/j.tetlet.2012.07.042
日期:2012.9
(enals) with diaryldisulfides is reported. The protocol involves carbonyl umpolung reactivity of aldehydes and enals in which the carbonyl carbon attacks nucleophilically on diaryldisulfides to afford thioesters and α,β-unsaturated thioesters, respectively. However, aliphatic aldehydes are not suitable substrates for this reaction. No by-product formation, complete atom-economy, shorter reaction time, ambient