作者:Frank Hibbert、Rowena J. Sellens
DOI:10.1039/p29880000399
日期:——
The rate coefficient for hydrolysis of 1-acetoxy-8-acetylaminonaphthalene to 1-hydroxy-8-acetylaminonaphthalene in aqueous sodium hydroxide shows a curved dependence on hydroxide ion concentration. Similar results are observed for the 3,6-disulphonate and five substituted 1-benzoyloxy-8-benzoylamino-3,6-disulphonates. In the proposed mechanism the ester group undergoes intermolecular attack by hydroxide
在氢氧化钠水溶液中1-乙酰氧基-8-乙酰氨基萘水解为1-羟基-8-乙酰氨基萘的速率系数显示出对氢氧根离子浓度的弯曲依赖性。对于3,6-二磺酸盐和五个取代的1-苯甲酰氧基-8-苯甲酰基氨基-3,6-二磺酸盐,观察到相似的结果。在所提出的机理中,酯基经受氢氧根离子的分子间进攻,而酰胺基经受分子内的进攻。后者通过快速的酰基转移产生与酯平衡的酰亚胺中间体,并且由于酰亚胺被缓慢水解以生成产物,因此其形成抑制了酯的水解。