Oxidation products of fused 2-hetarylimidazole derivatives

…, AP Savost'yanov, MM El'chaninov…

Index: Aleksandrov; Savost'yanov; El'chaninov; Salamatina Russian Journal of General Chemistry, 2011 , vol. 81, # 8 p. 1716 - 1719

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Abstract

Abstract Oxidation of 5-(1-methyl-1 H-benzimidazol-2-yl) thiophene-, and-selenophene-2- carbaldehydes with potassium dichromate in 20% aqueous sulfuric acid afforded the corresponding carboxylic acids. Analogous reaction with 5-(1-methyl-1 H-benzimidazol-2-yl) furan-2-carbaldehyde led to the formation of 1-methyl-1 H-benzimidazole as a result of decarboxylation of the primary oxidation product and subsequent decomposition of the ...