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1. (WO2017155217) METHOD FOR ACIDIFYING TEREPHTHALYLIDENE DICAMPHOR SULFONIC ACID SALT

Pub. No.:    WO/2017/155217    International Application No.:    PCT/KR2017/001584
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Wed Feb 15 00:59:59 CET 2017
IPC: C07C 309/24
C07C 309/32
C07C 309/44
Applicants: CHIROCHEM CO., LTD.
Inventors: LEE, Ho Seong
SONG, Jeong Ho
KIM, Ho Cheol
HAN, Sang Cheol
KIM, Eui Gyun
Title: METHOD FOR ACIDIFYING TEREPHTHALYLIDENE DICAMPHOR SULFONIC ACID SALT
Abstract:
Provided is a method for acidifying a terephthalylidene dicamphor sulfonic acid salt to convert the terephthalylidene dicamphor sulfonic acid salt to a terephthalylidene dicamphor sulfonic acid, and specifically, a method for converting a terephthalylidene dicamphor sulfonic acid salt to a terephthalylidene dicamphor sulfonic acid in the presence of a cation exchange resin, wherein the conversion method of the present invention is a significantly effective method with a high conversion rate by a simple process.