Hydroxylamine as an oxygen nucleophile: substitution of sulfonamide by a hydroxyl group in benzothiazole-2-sulfonamides
作者:Jos J. A. G. Kamps、Roman Belle、Jasmin Mecinović
DOI:10.1039/c2ob26929e
日期:——
the corresponding amine. Mechanistic studies that employ a combination of structure–reactivity relationships, oxygen labeling experiments, and (in)direct detection of intermediates and products reveal that the reaction proceeds via oxygen attack, and that oxygen incorporated in the 2-hydroxybenzothiazole product derives from hydroxylamine. The reaction, which is performed under mild conditions, can be
苯并噻唑-2-磺酰胺在水溶液中与过量的羟胺反应生成2-羟基苯并噻唑,二氧化硫和相应的胺。结合结构-反应关系,氧标记实验以及(和)间接检测中间体和产物的机理研究表明,反应是通过氧攻击进行的,并且2-羟基苯并噻唑产物中掺入的氧均来自羟胺。在温和条件下进行的反应可用作裂解苯并噻唑-2-磺酰基保护的氨基酸的脱保护方法。