Synthetic Routes to, Transformations of, and Rather Surprising Stabilities of (<i>N</i>-Methyl-<i>N</i>-phenylcarbamoyl)sulfenyl Chloride, ((<i>N</i>-Methyl-<i>N</i>-phenylcarbamoyl)dithio)carbonyl Chloride, and Related Compounds
作者:Alex M. Schrader、Alayne L. Schroll、George Barany
DOI:10.1021/jo201329n
日期:2011.10.7
The title compound classes, (carbamoyl)sulfenyl chlorides and ((carbamoyl)dithio)carbonyl chlorides, have been implicated previously as unstable, albeit trappable, intermediates in organosulfur chemistry. The present work reports for each of these functional groups: (i) several routes to prepare it in the N-methylaniline family; (ii) its direct structural characterization by several spectroscopic techniques;
先前已经将标题化合物类别((氨基甲酰基)亚磺酰氯和((氨基甲酰基)二硫代)羰基氯)认为是有机硫化学中不稳定的,尽管可捕集的中间体。本工作报告了这些官能团的每一个:(i)在N-甲基苯胺家族中制备它的几种途径;(ii)通过几种光谱技术对其结构进行直接表征;(iii)其相当意外的稳定性以及其分解时的最终命运;(iv)一系列进一步的化学转化,产生高度稳定的衍生物,每个衍生物都经过全面表征。进行了相关的动力学和机理实验,包括一些被对甲基和2,6-二甲基取代的N-甲基苯胺。鉴于标题化合物可以分离并且相对稳定,它们可以在制备用于半胱氨酸的巯基功能的硫解和/或光不稳定保护基中以及在开发新的蛋白质合成和修饰试剂中找到应用。