Aerobic oxidation of thiols to disulfides by heterogeneous gold catalysts

被引：110

作者：

Corma, Avelino ^{[1
]}

Rodenas, Tania ^{[1
]}

Sabater, Maria J. ^{[1
]}

机构：

[1] Univ Politecn Valencia, Inst Tecnol Quim, Consejo Super Invest Cient, Valencia 46022, Spain

来源：

CHEMICAL SCIENCE | 2012年 / 3卷 / 02期

关键词：

AIR OXIDATION; C-C; EFFICIENT; ACID; COBALT(II); KINETICS; ANILINES; OXIDANT; AGENT; MILD;

D O I：

10.1039/c1sc00466b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Thiols are smoothly and efficiently oxidized to disulfides (RSSR) with air in the presence of gold nanoparticles supported on CeO2 in absence of solvent, as well as in aqueous solutions and neutral pH. It is shown that the reaction can occur through the coupling of two sulphur radicals on the metal surface. The sulphur radicals are formed from thiols by one-electron oxidation with the metal. This reaction mechanism strongly resembles that found for sulfhydryl oxidases, a class of enzymes which are involved in the oxidative protein folding through de novo formation of disulfides from thiols.

引用

页码：398 / 404

页数：7

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