A method for preparing diaryl iodonium salts represented by the formula:
wherein Ar, and Ar2 may be the same or different and each is an aryl group which may be substituted with an electron donor group, the method comprising subjecting a compound represented by the formula Ar1-H wherein Ar1 is as defined above and a compound Ar2-1 wherein Ar2 is as defined above to a coupling reaction in a sulfuric acid solution containing an oxidizing agent and diluted with a diluting agent to a concentration of 85% by weight or less at a reaction temperature in the range from -20 to +35°C.
一种制备由式表示的二芳基
碘鎓盐的方法:
其中 Ar 和 Ar2 可以相同或不同,且各自为可被电子供体基团取代的芳基,该方法包括使式 Ar1-H 所代表的化合物(其中 Ar1 如上文所定义)和化合物 Ar2-1(其中 Ar2 如上文所定义)在含有氧化剂的
硫酸溶液中进行偶联反应,该
硫酸溶液用稀释剂稀释至浓度为 85%(重量)或更低,反应温度为-20 至 +35°C。