One-Pot Lewis Acid Mediated Water-Promoted Transformation of Styrenes to α-Substituted Conjugated Enals
作者:Ekaterina S. Kudriashova、Margarita A. Yarushina、Andrei E. Gavryushin、Ivan D. Grishin、Yulia B. Malysheva、Vasilii F. Otvagin、Alexey Yu. Fedorov
DOI:10.1021/acs.orglett.3c01576
日期:2023.7.14
We report herein an unusual one-pot preparation of α-benzyl-substituted conjugated enals via ZnCl2/LiCl/H2O-mediated transformation of styrenes. On the basis of experimental and computational studies, an underlying mechanism including electrophilic addition and hydride transfer with iminium cations has been proposed. The effect of the LiCl/ZnCl2/H2O combination on the reaction yield has been studied
An Efficient Method for Preparing the α-Deuterated-α,β-Unsaturated Carbonyl Compounds by Reaction of Stable Phosphonium Ylides with Carbonyl Compounds in Deuterium Oxide
作者:Yung-Son Hon、Tzyy-Rong Sheu、Chia-Fu Lee
DOI:10.1080/00397910008087298
日期:2000.1
Abstract Carbonyl compounds reacted with stable phosphoniumylides in D2O to give α-deuterated-α,β-unsaturated carbonyl compounds in the same flask. The chemical yield and deuterium incorporation are excellent under our procedure. The fragile group like ozonide was compatible with our reaction condition.