The chemistry of hydroxyquinones. Part II. The autoxidation of 3,6-dimethylbenzene-1,2,4-triol
作者:John F. Corbett
DOI:10.1039/j39670000611
日期:——
A spectroscopic and kinetic study of the autoxidation of 3,6-dimethylbenzene-1,2,4-triol has shown the first stage to proceed by way of a semiquinone intermediate to give the hydroxyquinone, dihydroxybiphenodiquinone, and hydrogen peroxide as the initial products. Subsequent reaction of the hydroxyquinone with alkali gives 2,5-dihydroxy-3,6-dimethylbenzoquinone and further hydrogen peroxide. This reaction
对3,6-二甲基苯-1,2,4-三醇的自氧化的光谱学和动力学研究表明,第一阶段是通过半醌中间体进行的,从而得到羟基醌,二羟基联苯二醌和过氧化氢作为初始产物。羟基醌与碱的随后反应得到2,5-二羟基-3,6-二甲基苯醌和另外的过氧化氢。该反应与醌的二聚反应竞争,得到无色的化合物C 16 H 18 O 7,特别是在不存在氧气的情况下,将其还原为联苯二醌。由于羟基醌与碱性过氧化氢之间的反应使环戊烷衍生物进一步复杂化,使第二步更为复杂。