Patent ID: 7163988
Filing Date: 2007-01-16
Classification: C07C,C08G

Abstract:
1. An aromatic sulfonic acid ester derivative represented by the formula (1); in which X is an atom or a group selected from a halogen atom excluding fluorine, —OSO 3 CH 3 and —OSO 3 CF 3 , A is a divalent electron attractive group, B is a divalent electron donating group or a direct bonding, R a is a hydrocarbon group of 1 to 20 carbon atoms, Ar is an aromatic group having a substituent represented by —SO 3 R b (wherein R b is a hydrocarbon group of 1 to 20 carbon atoms), m is an integer of 0 to 10, n is an integer of 0 to 10 and k is an integer of 1 to 4.