Title : ( Selective Oxidation of Thiols and Alcohols by Physically Encapsulated Nickel Schiff-Base Complex Prepared Via Sol-Gel Method as Nano-Catalyst )
Authors: Hossein Eshtiagh Hosseini , Taymaz Tabari , Reza Takjoo , Hossein Eshghi ,
Full TextAbstract
A heterogeneous catalyst was prepared by direct physical encapsulation of nickel Schiff-base complex into the silicon dioxide matrix via sol-gel method. The compounds were characterized by FT-IR, SEM, TEM, XRD, CHNS, and AAS. The catalytic performance in the alcohols and thiols oxidation was investigated in the presence of H2O2 (10 mmol, 30%) as oxidant. After five recycle runs, the catalyst showed 13% reduction in activity with slightly Ni(II)-complex leached to the solvent. Varieties of primary and secondary alcohols were efficiently oxidized to the corresponding ketones. Thiols were oxidized in coupling reaction to disulfides in excellent yields using nano-catalyst with H2O2.
Keywords
, aldehyde, disulfides, heterogeneous catalyst, Schiff-base, selective oxidation
@article{paperid:1032858,
author = {Eshtiagh Hosseini, Hossein and Tabari, Taymaz and Takjoo, Reza and Eshghi, Hossein},
title = {Selective Oxidation of Thiols and Alcohols by Physically Encapsulated Nickel Schiff-Base Complex Prepared Via Sol-Gel Method as Nano-Catalyst},
journal = {Synthesis and Reactivity in Inorganic Metal-Organic and Nano-Metal Chemistry},
year = {2013},
volume = {43},
number = {3},
month = {January},
issn = {1553-3174},
pages = {264--272},
numpages = {8},
keywords = {aldehyde; disulfides; heterogeneous catalyst; Schiff-base; selective oxidation},
}
%0 Journal Article
%T Selective Oxidation of Thiols and Alcohols by Physically Encapsulated Nickel Schiff-Base Complex Prepared Via Sol-Gel Method as Nano-Catalyst
%A Eshtiagh Hosseini, Hossein
%A Tabari, Taymaz
%A Takjoo, Reza
%A Eshghi, Hossein
%J Synthesis and Reactivity in Inorganic Metal-Organic and Nano-Metal Chemistry
%@ 1553-3174
%D 2013
