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Synthesis of 2,4-dihydro-6-methyl-4-phenyl-2-(4-substituted phenyl)pyrazolo[3,4-d]-1,2,3-triazole derivatives and their use as fluorescent whitener

โœ Scribed by D.W. Rangnekar; P.V. Tagdiwala


Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
715 KB
Volume
7
Category
Article
ISSN
0143-7208

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โœ Braulio Insuasty; Ricaurte Rodriguez; Jairo Quiroga; Roberto Martinez; Enrique A ๐Ÿ“‚ Article ๐Ÿ“… 1997 ๐Ÿ› Journal of Heterocyclic Chemistry ๐ŸŒ English โš– 210 KB ๐Ÿ‘ 1 views

## Abstract The acid catalyzed condensation of 4,5โ€diaminopyrazoles and chalcones gave the hitherto unknown 1โ€benzylโ€2,4,6โ€triphenylโ€2,3โ€dihydropyrazolo[3,4โ€__b__][1,4]diazepines derivatives. The structure of all products was supported by ir, ^1^H and ^13^Cโ€nmr and mass spectra.