作者:Mrityunjoy Datta、Alan J. Buglass、John G. Tillett
DOI:10.1080/10426507.2010.508691
日期:2011.2.28
acid-catalyzed hydrolysis of N-phenylalkanesulfinamides (RSONHPh; 1, R = iPr; 2, R = tBu; 3, R = 1-adamantyl) has been studied in aqueous mineral acids. Hydrolysis was found to proceed via a slow spontaneous (uncatalyzed) pathway, an A-2 (bimolecular) acid-catalysis pathway, and an acid-dependent nucleophilic catalysis pathway, the last of which predominates in hydrobromic and hydrochloric acid solutions
摘要 在含水无机酸中研究了 N-苯基链烷亚磺酰胺 (RSONHPh; 1, R = iPr; 2, R = tBu; 3, R = 1-金刚烷基) 的酸催化水解。发现水解通过缓慢的自发(未催化)途径、A-2(双分子)酸催化途径和酸依赖性亲核催化途径进行,最后一种在氢溴酸和盐酸溶液中占主导地位。在浓硫酸中检测到化合物 2 和 3 从 A-2 到 A-1 的机械转换。催化活性的顺序、添加盐的影响、Arrhenius 参数、动力学溶剂同位素和溶剂效应都与所提出的机制一致。图形概要