Direct Conversion of Benzene to Hydroquinone Mediated with Cu(I)/Cu(II) Redox System
Direct Conversion of Benzene to Hydroquinone Mediated with Cu(I)/Cu(II) Redox System
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Cu(I)/Cu(II) 氧化还原体系介导的苯直接转化为对苯二酚
DOI：
10.1149/1.2095476
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发表时间：
1988
影响因子：
3.9
通讯作者：
K. Sasaki
中科院分区：
文献类型：
--
作者：
S. Ito;H. Okada;R. Katayama;A. Kunai;K. Sasaki
在以Cu（I）/Cu（II）氧化还原电对为介体的苯与O2的一步电催化氧化反应中，以35- 42%的电流效率获得了对苯二酚。氧化产物的连续萃取电解产生对苯醌，电流效率为50%。苯在PbO_2（1-4）和玻碳（5）阳极上电解氧化生成对苯醌，电流产率为30- 60%。使用Ag § 2+电对作为介体的苯的间接氧化也以30-55%的电流产率产生对苯醌（6，7）。在1971年，Tomat和Vecchi发现苯可以通过使用电生成的芬顿试剂被”阴极”氧化成苯酚（8）。
In the one-step electrocatalytic oxidation of benzene with 02 using the Cu (I)/Cu (II) redox couple as a mediator, hydroquinone was obtained in the current efficiency of 35-42%. The electrolysis with continuous extraction of the oxidation products yielded p-benzoquinone in the current efficiency of 50%. The reaction mechanism for the formation of hydroquinone and p-benzoquinone is fully discussed.It is well known that benzene is electrolytically oxidized on PbO2 (1-4) and glassy carbon (5) anodes to give p-benzoquinone in current yield of 30-60%. Indirect oxidation of benzene using Ag § 2+ couple as a mediator also gives pbenzoquinone in current yield of 30-55%(6, 7). In 1971, Tomat and Vecchi found that benzene can be" cathodically" oxidized to phenol by use of electrogenerated Fenton's reagent (8)