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ChemInform Abstract: A Synthesis of N-Bridged 5,6-Bicyclic Pyridines via a Mild Cyclodehydration Using the Burgess Reagent and Discovery of a Novel Carbamylsulfonylation Reaction.

✍ Scribed by Jie Jack Li; et al. et al.

Publisher
John Wiley and Sons
Year
2008
Weight
34 KB
Volume
39
Category
Article
ISSN
0931-7597

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ChemInform Abstract: A Reaction for the
ChemInform Abstract: A Reaction for the Synthesis of Benzimidazoles and 1H-Imidazo[4,5-b]pyridines via a Novel Rearrangement of Quinoxalinones and Their Aza-Analogues when Exposed to 1,2-Arylenediamines.
✍ Vakhid A. Mamedov; Nataliya A. Zhukova; Tat'yana N. Beschastnova; Aidar T. Gubai 📂 Article 📅 2011 🏛 John Wiley and Sons ⚖ 33 KB 👁 2 views

## Abstract Recyclization of quinoxalines and aza‐analogues (I) in the presence of o‐phenylenediamines (II) or (V) proceeds smoothly in acidic solution to give 2‐quinoxalinylbenzimidazoles and aza‐analogues (III) and (VI)/(VII), respectively.