1956 年 76 巻 6 号 p. 726-728
Both the mono- and dinitro compounds of hydroquinone and catechol possess strong reducing action and their mercuration with mercury acetate or oxide was impossible either in the cold or with heating. On the other hand, 4-nitroresorcinol (range of color change, pH 5-7) is mercurated at pH 3-7 to form the 6-mercuri compound (II), although the reaction is accompanied with some reduction reaction. Mercuration of 2, 4-dinitroresorcinol (pH 2-4) at pH 2.5-3.5 afforded the mercury compound corresponding to formula (VI) and that corresponding to formula (VII) by reaction at pH 4.6-6.0. When the reaction was carried out at around pH 7, formation of an intramolecular mercury complex, assumed to have the structure of (VIII), was observed.