## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
An organocatalytic rearrangement of 2-(N-alkyl-/aryl-)amino-4-oxo-4H-1-benzopyran-3-carbaldehyde
✍ Scribed by Sourav Maiti; Suman Kalyan Panja; Chandrakanta Bandyopadhyay
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- French
- Weight
- 194 KB
- Volume
- 52
- Category
- Article
- ISSN
- 0040-4039
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📜 SIMILAR VOLUMES
## Abstract magnified image The title aldehyde **1** reacts smoothly with the enamine moiety of **2**‐aminochromone **2** to produce hitherto unreported 3‐(2‐hydroxybenzoyl)‐5__H__‐1‐benzopyrano[2,3‐__b__]pyridin‐5‐one (azaxanthone) **5**. This reaction has been extended for the synthesis of bisaz
## Abstract magnified image 2‐(Alkyl/arylamino)chromone‐3‐carbaldehyde reacts with Meldrum's acid, hippuric acid, 4‐hydroxycoumarin, diethyl malonate, ethyl acetoacetate, or ethyl benzoylacetate to produce 1‐benzopyrano[2,3‐__b__]pyridine‐2,5‐dione moiety, but ethyl cyanoacetate and malononitrile r