METHOD FOR PREPARING SULFONIUM SALTS AS AN INTERMEDIATE WHICH IS MAINLY USED TO MANUFACTURE A PHOTOACID GENERATOR AND SULFONIUM SALTS PREPARED BY THE SAME

摘要

PURPOSE: A method for preparing sulfonium salts is provided to simplify a reaction step without a refining process and to prepare sulfonium salts in high yield by solving problems on yield decrease since a reaction intermediate is attached to a reaction container in a refining process.;CONSTITUTION: A method for preparing sulfonium salts comprises the steps of: adding a compound represented by chemical formula 2 to a compound represented by chemical formula 1 and performing transesterification to produce a reaction intermediate; and adding inorganic salts to the reaction intermediate and performing substitution reaction to produce a compound represented by chemical formula 3.;COPYRIGHT KIPO 2011