METHOD OF PRODUCING AMINOPHENOL COMPOUNDS

THE PRESENT INVENTION PROVIDES AN INDUSTRIALLY ADVANTAGEOUS METHOD OF PRODUCING AMINOPHENOL COMPOUNDS REPRESENTED BY THE FORMULA (1) BY A SIMPLE AND EASY PROCEDURE AT A HIGH YIELD AND A HIGH PURITY. THE PRESENT INVENTION PROVIDES A METHOD OF PRODUCING AN AMINOPHENOL COMPOUND REPRESENTED BY THE FORMULA (1) : (WHEREIN EACH OF R¹ AND R², WHICH MAY BE THE SAME OR DIFFERENT, IS A HYDROGEN ATOM, A SUBSTITUTED OR UNSUBSTITUTED LOWER ALKYL GROUP OR THE LIKE; R¹ AND R², TAKEN TOGETHER WITH THE ADJACENT NITROGEN ATOM, MAY FORM A 5- OR 6-MEMBERED HETEROCYCLE WITH OR WITHOUT OTHER INTERVENING HETEROATOMS; THE HETEROCYCLE MAY BE SUBSTITUTED BY 1 TO 3 SUBSTITUENTS SELECTED FROM THE GROUP CONSISTING OF A HYDROXYL GROUP, A SUBSTITUTED OR UNSUBSTITUTED LOWER ALKYL GROUP, A SUBSTITUTED OR UNSUBSTITUTED ARYL GROUP, A SUBSTITUTED OR UNSUBSTITUTED ARYLOXY GROUP AND THE LIKE; AND THE HYDROXYL GROUP IN THE FORMULA (1) IS SUBSTITUTED ON THE 2- OR 4-POSITION TO THE AMINO GROUP ON THE PHENYL RING) , WHICH COMPRISES ALLOWING A CYCLOHEXANEDIONE COMPOUND REPRESENTED BY THE FORMULA (2).