substrates in asymmetric epoxidation reactions. In this study, chiral primary amines are shown to catalyze the asymmetric epoxidation of α-substitutedacroleins, a versatile type of 1,1-disubstituted terminal alkene. Among various chiral primary amines explored, the chiral primary-tertiary vicinal diamine derived from trans-1,2-diphenylethane-1,2-diamine is identified as the optimal catalyst, which, in combination
Metal‐Free Selective Synthesis of α,β‐Unsaturated Aldehydes from Alkenes and Formaldehyde Catalyzed by Dimethylamine
作者:Gongming Peng、Naseeb Ullah、Stéphane Streiff、Karine De Oliveira Vigier、Marc Pera‐Titus、Raphael Wischert、François Jérôme
DOI:10.1002/chem.202400601
日期:2024.5.23
We report here a selective and metal-free pathway to α,β-unsaturatedaldehydesfrom cheap alkenes and formaldehyde. The reaction occurs at 30–50 °C and only releases water as a by-product. Through a combined theoretical-experimental study, we discovered that this reaction could be advantageously catalyzed by dimethylamine.