Synthesis of imidazo[4,5-b]pyridines from aminoimidazolecarbaldehydes
✍ Scribed by Francisco Perandones; Jose L. Soto
- Publisher
- Journal of Heterocyclic Chemistry
- Year
- 1997
- Tongue
- English
- Weight
- 507 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0022-152X
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✦ Synopsis
Abstract
4‐Amino‐1,2‐dimethylimidazole‐5‐carbaldehyde (1) and 5‐amino‐1‐methylimidazole‐4‐carbaldehydes 3 were prepared by reduction of the corresponding aminoimidazolecarbonitriles 2 and 4. Condensation of 1 and 3 with carbonitriles, ketones and polyfunctional carbonyl compounds bearing the‐CH~2~CO‐moiety afforded to the imidazo[4,5‐b]pyridine derivatives.
📜 SIMILAR VOLUMES
## Abstract Kondensation von 2.3‐ bzw. 3.4‐Diamino‐pyridin mit Chloracetonitril in Polyphosphorsäure ergibt 2‐Chlormethyl‐imidazo[4.5‐__b__]‐ (**1a**) bzw.‐[4.5‐__c__]pyridin (**5**). Durch Umsetzung mit sekundären Aminen werden die entsprechenden Amino‐Derivate **2** bzw. **6** erhalten. Diese wer
## Abstract For Abstract see ChemInform Abstract in Full Text.