Hypervalent Iodine Mediated
Oxidation of 1,2-Diaminobenzimidazole and Its Schiff Bases: Efficient
Synthesis of 3-Amino-1,2,4-benzotriazine and 2-Aryl-1,2,4-triazolo[1,5-a]benzimidazoles

Ashok Kumar; Mahavir Parshad; Rakesh K. Gupta; Devinder Kumar

doi:10.1055/s-0028-1088055

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Hypervalent Iodine Mediated Oxidation of 1,2-Diaminobenzimidazole and Its Schiff Bases: Efficient Synthesis of 3-Amino-1,2,4-benzotriazine and 2-Aryl-1,2,4-triazolo[1,5-a]benzimidazoles

Ashok Kumar, Mahavir Parshad, Rakesh K. Gupta, Devinder Kumar*
Department of Chemistry, Guru Jambheshwar University of Science and Technology, Hisar 125001, Haryana, India
Fax: +91(01662)276240; e-Mail: dk_ic@yahoo.com;

Abstract

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Abstract

Hypervalent iodine mediated oxidation of 1,2-diaminobenzimidazole and its Schiff bases is described. The reaction produces 3-amino-1,2,4-benzotriazine and 2-aryl-1,2,4-triazolo[1,5-a]benzimidazoles efficiently.

Key words

hypervalent iodine reagents - 1,2-diaminobenzimidazole - 1,2,4-benzotriazine - 2-aryl-1,2,4-triazolo[1,5-a]benzimidazoles

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