| 摘要 |
PROBLEM TO BE SOLVED: To provide 3,4-disubstituted thiophene sulfonate usable as a monomer for a conductive polymer, and not having carboxylate on 2,5-positions, and to provide a method for producing the same.SOLUTION: This thiophene sulfonate is represented by general formula (1). The thiophene sulfonate is obtained, for example, by decarboxylation of 3,4-dihydroxy-2,5-dicarboxylic acid thiophene in a basic inert solvent, followed by reaction with sulfonyl chlorides in the presence of a tertiary alkylamine catalyst. (In the formula, Rand Reach independently represent a 1-8C alkyl, phenyl or tolyl). |
