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New, simple synthesis of 1-amino(imino)-3-methyl-pyrido[1,2-a]-benzimidazole-4-carbonitriles

✍ Scribed by Yu. M. Volovenko; V. V. Ivanov

Publisher
Springer US
Year
1997
Tongue
English
Weight
69 KB
Volume
33
Category
Article
ISSN
0009-3122

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ChemInform Abstract: New Simple Synthesi
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New Simple Synthesis of 1-Amino(imino)-3-methylpyrido[1,2a]benzimidazole-4-carbonitriles. -Reaction of 2cyanomethylbenzimidazoles (I) and (IV) with Ξ²-aminocrotonic acid nitrile (II) affords the fluorescent title pyrido[1,2-a]benzimidazoles (III) and (V), resp., in moderate yields. -(VOLOVENKO, YU.

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## Abstract magnified image Several 2–amino‐6‐(1‐aryl‐5‐methyl‐1__H__‐1,2,3‐triazol‐4‐yl)‐4‐phenylpyridine‐3‐carbonitrile have been synthesized by Tandem Michael addition/imino‐nitrile cyclization and the structures of these compounds were established by MS, IR, CHN, and ^1^H NMR spectral data. The