A practical and efficient continuous-flow system was developed for the synthesis of site-selectively deuterium-labeled β-nitroalcohols by using the tertiary amine-functionalized basic anion exchang...
Dual-reagent organocatalysis with a phosphine and electron-deficient alkene: application to the Henry reaction
作者:Xiu Wang、Fan Fang、Chen Zhao、Shi-Kai Tian
DOI:10.1016/j.tetlet.2008.08.092
日期:2008.11
Trip henylphosphine in combination with methyl acrylate was found to be able to catalyze the Henry (nitroaldol) reaction of various aldehydes and alpha-keto esters to give the corresponding beta-nitroalkanols in good to excellent yields, and a catalytic cycle involving a zwitterionic phosphine-alkene adduct was proposed for this dual-reagent organocatalysis according to the deuterium-labeling experiments with CD3NO2. (C) 2008 Elsevier Ltd. All rights reserved.