| abstract |
(57) [Summary] [Purpose] The purpose is to introduce a carboxyl group directly into an aromatic carboxylic acid. [Constitution] benzenecarboxylic acid, biphenylcarboxylic acid, Naphthalenecarboxylic acid or diphenylcarboxylic acid, or a derivative thereof, is reacted with a carbon tetrahalide in the presence of cyclodextrin and an alkali metal hydroxide, whereby hydrogen bonded to the aromatic ring of the aromatic carboxylic acid or derivative. To selectively introduce a carboxyl group into the aromatic ring. |