136806-29-6

Upstream product

• 101291-27-4 2-(4'-hydroxycoumarin-3'-formimino)-1-aminobenzene 
• 51751-34-9 4-hydroxycoumarin-3-carboxaldehyde 
• 95-54-5 1,2-diamino-benzene 
• 136806-16-1 4-azido-2-oxo-2H-chromene-3-carbaldehyde 
• 50329-91-4 4-chloro-3-formylcoumarin 

Relevant academic research and scientific papers

Heterocyclic -Condensed Coumarins from 4-Azido-3-coumarincarbaldehydes

4-Azido-3-coumarincarbaldehydes 2a-d are useful starting materials for syntheses of a variety of 3,4-disubstituted coumarins as well as heterocyclic -fused coumarins, e. g. isoxazoles, pyrazoles and 1,5-diazepines, under mild conditions.In these reacti

Syntheses of Angular Condensed Ring Systems Combining a Benzodiazepinic, or Benzothiazepinic, and a Coumarinic Moiety

The title compounds were prepared via intermediates resulting from reactions of 3-formyl-4-hydroxycoumarin (1) with o-phenylenediamine, o-aminophenol and o-aminothiophenol, respectively.Intramolecular ring closures were effected between the free hydroxy and amino or thiol groups.