Palladium‐Catalyzed Decarboxylative Cycloaddition of Vinylethylene Carbonates with Formaldehyde: Enantioselective Construction of Tertiary Vinylglycols
An efficient method for the enantioselectiveconstruction of tertiaryvinylglycols through a palladium‐catalyzed asymmetric decarboxylativecycloaddition of vinylethylenecarbonates with formaldehyde was developed. By using a palladium complex generated in situ from [Pd2(dba)3]⋅CHCl3 and a phosphoramidite ligand as a catalyst under mild reaction conditions, the process allows conversion of racemic
Chemo‐, Regio‐ and Stereoselective Preparation of (Z)‐2‐Butene‐1,4‐Diol Monoesters via Pd‐Catalyzed Decarboxylative Acyloxylation
作者:Long Cheng、Jia‐Li Zhao、Xiao‐Tian Zhang、Qiao‐Sen Jia、Ni Dong、Yu Peng、Arjan W. Kleij、Xiang‐Wei Liu
DOI:10.1002/chem.202401377
日期:2024.7.11
A practical method for the preparation of a wide range of 2-butene-1,4-diol monoesters using Pd-catalysis is described that combines typically high yields, high chemo-, regio- and stereocontrol under mild operating conditions. The target compounds find application in the synthesis of a range of bifunctional scaffolds that have potential in complex molecule synthesis.