A production method of a sulfonium salt compound represented by the following general formula (1):
wherein Ar represents an aromatic compound residue, X represents a halogen atom, which is a substituent on the aromatic compound residue, n represents an integer of from 1 to 7, a plurality of each of Ar, X and n may be the same or different, and Z represents a counteranion other than a halide ion,
the method comprising:
reacting an aryl halide compound with a compound represented by the following general formula (2) in the presence of a Lewis acid
wherein Y1 and Y2 each independently represent a halogen atom, an alkoxy group or an aryloxy group;
terminating the reaction by water in an after-treatment step of the reaction;
isolating a water layer from the reaction mixture that has been separated into two layers;
extraction-treating the water layer by an organic solvent to remove a by-product;
adding a compound represented by the following general formula (3) to the extraction-treated water layer to precipitate the sulfonium salt compound represented by the general formula (1)
M-Z General Formula (3)
wherein Z is as defined above, and M represents a proton or an alkali metal cation; and
isolating the precipitated sulfonium salt compound by solid-liquid separation.
一种制备以下通式(1)所表示的磺鎓盐化合物的生产方法:其中Ar代表芳香族化合物残基,X代表芳香族化合物残基上的取代基卤素原子,n代表1至7的整数,Ar、X和n的多个可以相同也可以不同,Z代表除卤素离子以外的反离子,该方法包括:在
路易斯酸存在下,将芳基卤化物化合物与以下通式(2)所表示的化合物反应;其中Y1和Y2各自独立地代表卤素原子、烷氧基或芳氧基;在反应的后处理步骤中用
水终止反应;将分离成两层的反应混合物中的
水层分离出来;用有机溶剂对
水层进行萃取处理以去除副产物;向萃取处理后的
水层中加入以下通式(3)所表示的化合物以沉淀通式(1)所表示的磺鎓盐化合物;其中Z如上定义,M代表质子或碱
金属阳离子;通过固液分离来分离沉淀的磺鎓盐化合物。