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

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.

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

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

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