1247728-86-4Relevant academic research and scientific papers
2-[(3,5-Diamino-1H-pyrazol-4-yl)methylidene]-1,2-dihydro-3H-indol-3-ones: Synthesis and properties
Masterova,Ryabova,Alekseeva,Shashkov,Chernyshev,Granik
, p. 1973 - 1980 (2009)
Reactions of 3-acetoxy-2-(2,2-dicyanovinyl)indole with hydrazine hydrate and methyl-and phenylhydrazines afforded new indolin-3-one derivatives, namely, 2-[(3,5-diaminopyrazol-4-yl)methylidene]indolin-3-ones. Reactions of the compounds obtained with acetic anhydride and DMF and DMAA dimethyl acetals were studied. Cyclization of 2-[(3,5-diamino-1H-pyrazol4-yl)methyridene]-1,2-dihydro- 3 H-indolinone gave 3-amino-1,5-dihydropyrazolo-[4',3':5,6]pyrido[3,2-b]indole, a representative of a novel heterocyclic system.
