Issue 5, 2013
From the journal:

Green Chemistry

Reduction of sulfoxides and pyridine-N-oxides over iron powder with water as hydrogen source promoted by carbon dioxide†

Ran Ma,a   An-Hua Liu,a   Cheng-Bin Huang,a   Xue-Dong Lia  and  Liang-Nian He*a  

* Corresponding authors

a State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, P. R. China
E-mail: heln@nankai.edu.cn
Tel: +86 22 2350 3878

Abstract

A green process was developed for efficient reduction of sulfoxides and pyridine-N-oxides using the iron powder in the presence of H2O–CO2 to sulfides and pyridines, respectively. Notably, H2O is employed as the terminal hydrogen source, and CO2 could enhance hydrogen generation through in situ formation of carbonic acid. Thus carbonic acid offers simple neutralization by depressurizing CO2 and the system can eliminate unwanted byproducts. The high generality and chemo-selectivity of this protocol were demonstrated by the scope of substrates, in which chlorine, vinyl group and benzene ring can be tolerated.

Graphical abstract: Reduction of sulfoxides and pyridine-N-oxides over iron powder with water as hydrogen source promoted by carbon dioxide

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Article information

DOI
https://doi.org/10.1039/C3GC40243F
Article type
Paper
Submitted
01 Feb 2013
Accepted
03 Mar 2013
First published
06 Mar 2013

Green Chem., 2013,15, 1274-1279

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Reduction of sulfoxides and pyridine-N-oxides over iron powder with water as hydrogen source promoted by carbon dioxide

R. Ma, A. Liu, C. Huang, X. Li and L. He, Green Chem., 2013, 15, 1274 DOI: 10.1039/C3GC40243F

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