B. A. Demydchuk, V. Brovarets, A. N. Chernega
Jul 7, 2006
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0
Influential Citations
4
Citations
Journal
Synthesis
Abstract
Readily available 1-aryl-l,3,4,4-tetrachloro-2-azabuta-1,3-dienes enter into a pronouncedly directed cyclocondensation reaction with 2-(ω-aminoalkyl)benzimidazoles to give the corresponding seven-, eight-, and nine-membered azaheterocycles regioselectively annulated to the benzimidazole nucleus. The products thus obtained are derived from benzimidazole fused to 2H-1,3,5-triazepine, 1,3,5-triazocine, or 2H-1,3,5-triazonine, in accordance with comprehensive structural determination by spectroscopic methods and X-ray diffraction analysis.