1H-NMR spectra of some ditriazolyls and ditriazolyalkanes
作者:A. Aykut İkizler、Haydar Yüksek、Şule Bahçeci
DOI:10.1007/bf01045310
日期:1992.1
The proton magnetic resonance spectra of 12 azoles were measured in neutral and acidic solvents. The protonation shifts observed by comparison of the spectra in DMSO-d6 and TFA were attributed to an amidinium type resonance of the resulting cations. The synthesis and characterization of the azoles are also discussed.
The present invention relates to a process for the synthesis of Pirfenidone (1) from 5-Methyl-3,4-dihydro-2-pyridone and halobenzene (chlorobenzene, bromobenzene, or iodobenzene) in the presence of a catalytic system consisting of a copper salt and an organic ligand, in the presence of a base.