S,S′-Bis(1-phenyl-1H-tetrazol-5-yl) dithiocarbonate is a useful reagent for the esterificalion of carboxylic acids with alcohols, including lactonization. The reagent is conveniently prepared in good yield from 1-phenyl-5-thioxo-4,5-dihydro-1H-tetrazole and trichloromethyl chloroformate (trichloromethyl carbonochloridate) in ethyl acetate in the presence of triethylamine. Its structure was confirmed by 13C-NMR spectrometry and single-crystal X-ray analysis.
S,S′-双(1-苯基-1H-
四氮唑-5-基)二
硫碳酸酯是一种用于
羧酸与醇酯化反应的有效试剂,包括内酯化。该试剂可通过在
三乙胺的存在下,将1-苯基-5-
硫酮-4,5-二氢-1H-
四氮唑和三
氯甲基
氯甲酸酯(三
氯甲基碳
氯酸酯)在
乙酸乙酯中反应,便捷地获得高产率。其结构通过13C-NMR光谱和单晶X射线分析得到确认。