Metal ion promoted hydroxide ion and water catalyzed hydrolysis of amides. Effects of the acyl group and the leaving group
作者:Thomas H. Fife、Ramesh Bembi
DOI:10.1021/ja00077a039
日期:1993.12
derivatives of N-methyl-4-nitroaniline in H 2 O is hydroxide ion catalyzed; plots of log k obsd vs pH are linear with slopes of 1.0 at pH>8. When there is a chelating functional group in the acyl portion of the molecule (1,10-phenanthrolinyl or 6-carboxypicolinoyl) and in the presence of saturating concentrations of Cu 2+ , Co 2+ , or Zn 2+ , hydroxide ion catalyzed reactions are observed at pH>4 (rate enhancements
N-甲基-4-硝基苯胺的苯胺衍生物在H 2 O中水解是氢氧根离子催化的;log k obsd 对 pH 的图是线性的,在 pH>8 时斜率为 1.0。当分子的酰基部分(1,10-菲咯啉基或6-羧基吡啶甲酰基)中存在螯合官能团且存在饱和浓度的Cu 2+ 、Co 2+ 或Zn 2+ 时,氢氧根离子催化反应在 pH>4 时观察到(速率增强范围从 10 4 到 10 5 倍),并且在 pH 1 到 4 时发生与 pH 无关的反应