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Synthesis 2009(10): 1663-1666
DOI: 10.1055/s-0028-1088055
DOI: 10.1055/s-0028-1088055
PAPER
© Georg Thieme Verlag
Stuttgart ˙ New York
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
Weitere Informationen
Received
6 January 2009
Publikationsdatum:
20. April 2009 (online)
Publikationsverlauf
Publikationsdatum:
20. April 2009 (online)
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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