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Formation of polyheterocyclic systems by reaction of 2-imino-4-methyl-2H-1-benzopyran-3-carbonitrile with active methylene compounds

✍ Scribed by O'Callaghan, Conor N.; McMurry, T. Brain H.; O'Brien, John E.; Draper, Sylvia M.; Wilcock, Deborah J.


Book ID
127364786
Publisher
Royal Society of Chemistry
Year
1996
Weight
642 KB
Volume
10
Category
Article
ISSN
1472-7781

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Benzopyrans. Part 42. Reactions of 4-Oxo
✍ Chandra Kanta Ghosh; Anirban Ray; Amarendra Patra πŸ“‚ Article πŸ“… 2001 πŸ› Journal of Heterocyclic Chemistry 🌐 English βš– 51 KB πŸ‘ 1 views

## Abstract The title aldehyde 1 in the presence of ammonia gives the pyridine derivatives 9‐11 respectively with acetylacetone, diethyl malonate and ethyl cyanoacetate, and ethyl (or methyl)‐l‐benzopyrano[4,3‐__b__]pyri‐dine‐3‐carboxylate **22** (or **23**) with ethyl (or methyl) acetoacetate. Ace