Carboxylative Cyclization of 2-Butenoates with Carbon Dioxide: Access to Glutaconic Anhydrides
作者:Ke Zhang、Wen-Zhen Zhang、Xue-Yan Tao、Min Zhang、Wei-Min Ren、Xiao-Bing Lu
DOI:10.1021/acs.joc.0c01717
日期:2020.9.4
Cyclic anhydrides are versatile synthons and functional comonomers. Herein, we reported an organic base-promoted carboxylative cyclization of 2-butenoates with carbon dioxide to produce important glutaconic anhydrides in good yields. This metal-free reaction showed broad substrate scopes and proceeded under mild reaction conditions.
环酸酐是通用的合成子和功能性共聚单体。在这里,我们报道了2-丁烯酸酯与二氧化碳的有机碱促进的羧基环化,以良好的产率产生重要的戊二酸酐。这种无金属的反应显示出广泛的底物范围,并且在温和的反应条件下进行。