91546-72-4Relevant academic research and scientific papers
On the reaction of 3-cyanochromones with phenyl- and methylhydrazines: Structural revision and a simple synthesis of chromeno[4,3-c]pyrazol-4-ones
Sosnovskikh, Vyacheslav Ya,Moshkin, Vladimir S.,Kodess, Mikhail I.
scheme or table, p. 629 - 633 (2010/07/18)
(Chemical Equation Presented) Reactions of 3-cyanochromones with phenylhydrazine gave the corresponding 5-amino-4-salicyloyl-1-phenylpyrazoles, 2-aminochromone-3-carbaldehyde N-phenylhydrazones, and 1-phenylchromeno[4,3-c] pyrazol-4(1H)-one, depending on
Heterocyclic Systems: Part XIII - Reactions of 3-N,N-Dimethylhydrazonomethyl-, Oximomethyl- and Cyano-chromones with Nucleophiles Containing Nitrogen
Ghosh, Chandra Kanta,Tewari, Nimai,Bandyopadhyay, Chandrakanta
, p. 1200 - 1204 (2007/10/02)
Reactions of the title chromones (3, 9, 10) with nitrogen containing nucleophiles (5-7) have been studied.When treated with phenylhydrazine, the hydrazone (9) produces the same pyrazole 17 (R'=Ph) as obtained by reacting chromone-3-carboxaldehyde (8) with
