Ni-nanoparticles: An efficient green catalyst for chemo-selective oxidative coupling of thiols

被引：139

作者：

Saxena, Amit ^{[1
]}

Kumar, Ajeet ^{[1
]}

Mozumdar, Subho ^{[1
]}

机构：

[1] Univ Delhi, Dept Chem, Delhi 110007, India

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2007年 / 269卷 / 1-2期

关键词：

Ni-nanoparticles; green catalyst; thiols; disulfides; catalytic oxidation;

D O I：

10.1016/j.molcata.2006.12.042

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Use of highly monodispersed, easily recyclable and cheap nickel nanoparticles for oxidative coupling of aliphatic, aromatic, cyclic and heteroaromatic thiols to their corresponding disulfides has been reported. Ni-nanoparticles act as a green catalyst that can selectively catalyse oxidative coupling of thiols to disulfides without producing any over-oxidized products. The catalytic reaction occurred at room temperature with excellent yield under air atmosphere and high TON and TOF value could be achieved. Effect of solvent polarity and size distribution of the Ni-nanoparticles on the catalytic efficiency have been investigated. Nickel nanoparticles could be easily recovered by mild centrifugation. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：35 / 40

页数：6

共 52 条

[1] CATALYTIC-OXIDATION OF MERCAPTANS BY IODINE HYDROGEN IODIDE SYSTEM IN DIMETHYL-SULFOXIDE [J].