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Phosphorus, Sulfur, and Silicon and the Related Elements Volume 186, 2011 - Issue 8
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Original Articles

Iron-Catalyzed Tandem Reactions of ortho-Aminobenzenethiols with Isothiocyanates Leading to 2-Aminobenzoazoles Under Ligand- and Solvent-Free Conditions

Qiuping Ding College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, China; Key Laboratory of Green Chemistry of Jiangxi Province, Nanchang, China
,
Banpeng Cao College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, China
,
Qin Yang Key Laboratory of Green Chemistry of Jiangxi Province, Nanchang, China
,
Xianjin Liu College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, China
&
Yiyuan Peng College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, China; Key Laboratory of Green Chemistry of Jiangxi Province, Nanchang, China
Pages 1782-1789 | Received 23 Aug 2010, Accepted 13 Oct 2010, Published online: 11 Aug 2011
 
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Abstract

An efficient route to synthesize a variety of 2-aminobenzoazoles has been discovered. It involves the reaction of ortho-aminobenzenethiols with isothiocyanates via iron-catalyzed tandem addition-annulations process under ligand and solvent free conditions on silica gel surface.

GRAPHICAL ABSTRACT

Acknowledgments

Financial support from the Natural Science Foundation of Jiangxi Educational Committee (GJJ10387), Jiangxi Province of China (2009GQH0054), Startup Foundation for Doctors of Jiangxi Normal University (200900266), and National Natural Science Foundation of China (20962010) is gratefully acknowledged.

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