| abstract |
The present invention provides a method for producing a polyhydric phenol compound represented by the following general formula (I), wherein the compound represented by the following general formula (II) and pyrogallol are condensed in the presence of an organic solvent and an acid catalyst.n n n n n n n n [Wherein, R 1 , R 2 and R 3 each represent a hydrogen, an atom, an alkyl, alkenyl, cycloalkyl, aralkyl or an aryl group]n n n The polyhydric phenol compound of the present invention is useful as an intermediate such as a photosensitizer or sensitizer for photoresist. |