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首次系统地研究了卤化铵催化的间氯过氧苯甲酸氧化磺酰亚胺为哑嗪的方法.四乙基卤化铵(包括四乙基碘化铵及四乙基氯化铵)和四甲基卤化铵(包括四甲基碘化铵、四甲基溴化铵、四甲基氯化铵)被首次应用于催化氧化一系列磺酰亚胺为相应的哑嗪,可获得很高的产率.研究结果表明铵盐上氮原子的取代基对反应产率的影响是关键的,而卤素离子的影响较小.为哑嗪的合成提供了一种高产率、简便的方法.
For the first time, a systematic study of ammonium halide catalyzed m-chloroperbenzoic acid oxidation of sulfonyl imine to diazine method tetraethylammonium halide (including tetraethylammonium iodide and tetraethylammonium chloride) and tetramethyl Ammonium halides (including tetramethylammonium iodide, tetramethylammonium bromide, tetramethylammonium chloride) were first used to catalyze the oxidation of a series of sulfonimides to the corresponding diazines, yielding very high yields The results show that the effect of nitrogen atom substituents on the yield of the reaction is crucial, while the effect of halogen ions is small, which provides a high yield and convenient method for the synthesis of diazine.