153562-20-0Relevant articles and documents
Investigation on the reactions of fluorinated 1,3-diketones with 5-aminotetrazole: Synthesis of some tetrazolopyrimidines and β-ketoamine derivatives
Joshi, Krishna C.,Dandia, Anshu,Jain, Sunita,Joshi, Rahul
, p. 886 - 888 (2007/10/02)
Reactions of 5-aminotetrazole (II) with fluorinated 1,3-diketones (Ia-c) in different media have been investigated and found to be solvent dependent.Tetrazolopyrimidines (IIIa-c) are exclusively obtained in gl. acetic acid while β-ketoamines (Va-c) of tetrazole along with IIIa-c are obtained in abs. ethanol.The spectral data of the free schiff bases indicate that the site of amine condensation in unsymmetrical β-ketoamines is the lesser enolized acyl oxygen and the ketoamino-form is the predominant tautometer.The proposed structures are fully corroborated by IR, PMR, 19F NMR and mass spectral data.