作者:Dayong Sang、Huaxin Yue、Yang Fu、Juan Tian
DOI:10.1021/acs.joc.1c00034
日期:2021.3.5
A one-pot procedure for deprotecting carboxylic esters under nonhydrolytic conditions is described. Typical alkyl carboxylates are readily deblocked to the carboxylic acids by the action of aluminum powder and iodine in anhydrous acetonitrile. Cleavage of lactones affords the corresponding ω-iodoalkylcarboxylic acids. Aryl acetylates undergo deacetylation with the participation of the neighboring group
描述了一种在非水解条件下使羧酸酯脱保护的一锅法方法。在无水乙腈中,铝粉和碘的作用下,典型的羧酸烷基酯很容易解封为羧酸。切割内酯得到相应的ω-碘代烷基羧酸。乙酸芳基酯在相邻基团的参与下进行脱乙酰化。该方法能够在芳基酯存在下选择性裂解烷基羧酸酯。