作者:William C. Shearouse、Chelsea M. Korte、James Mack
DOI:10.1039/c0gc00671h
日期:——
Over the last decade, solvent-free methods have been gaining interest as replacements for traditional organic chemistry techniques. While solvent-free methods are well known for many processes, a simple, solvent-free purification procedure that supplements them does not exist. We report the solvent-free synthesis of α,β-unsaturated esters using a solvent-free HornerâWadsworthâEmmons (HWE) reaction using high-speed ball milling (HSBM). We were able to perform the HWE reaction on a variety of aldehydes, and isolate their respective a,b-unsaturated esters in high yields, purities, and diastereoselectivities.
过去十年来,无溶剂方法作为传统有机化学技术的替代品,越来越受到关注。尽管无溶剂方法在很多过程中广为人知,但补充这些方法的简单无溶剂纯化程序尚未出现。我们报道了通过高转速球磨(HSBM)进行的无溶剂Horner-Wadsworth-Emmons(HWE)反应,实现了α,β-不饱和酯的无溶剂合成。我们成功地在多种醛上进行了HWE反应,并以高产率、纯度和非对映选择性分离出相应的α,β-不饱和酯。