The chemistry of trisulphenamides [N(SR)3]. Part I. Preparation, thermal decomposition, and reactions of tribenzenesulphenamide [N(SPh)3]
作者:Derek H. R. Barton、Ian A. Blair、Philip D. Magnus、Robert K. Norris
DOI:10.1039/p19730001031
日期:——
acetic anhydride gave tribenzenesulphenamide [N(SPh)3]. Decomposition of this substance at ca. 80° gave nitrogen and diphenyl disulphide in quantitative yields. Phenols react with tribenzenesulphenamide to give quinone phenylthioimines. Where both ortho- and para-positions in the phenol are available for substitution, ortho-substitution predominates. The mechanism of this reaction involves initial H·
用乙酸酐处理二苯磺酰胺的钠盐,得到三苯磺酰胺[N(SPh)3 ]。该物质在约200 ℃下分解。80°得到定量产率的氮和二苯基二硫化物。苯酚与三苯磺酰胺反应生成醌苯硫亚胺。在苯酚中的邻位和对位均可用于取代的情况下,邻位取代占主导。该反应的机理包括通过·N(SPh)2基团从苯酚中最初的H·提取,得到例如种(XVI)。此类中间体的后续分解得到分离的产物。与酚相比,胺的特异性反应较少。