Collect. Czech. Chem. Commun. 1979, 44, 908-911

Effect of lanthanide shift reagents on 1H NMR spectra of aminopyridines

Antonín Lyčka and Dobroslav Šnobl

Research Institute of Organic Syntheses, 532 18 Pardubice-Rybitví


The effect of Eu(dpm)3 and Pr(dpm)3 on the proton spectra of 2-amino-, 3-amino- and 4-aminopyridines has been studied by the 1H NMR spectroscopy in tetrachlomethane and deuteriochloroform at 25 °C. Relative changes of the induced chemical shifts of pyridine carrying electron-donor substituents (amino group) are the same as the values given in literature for pyridine ring with electron-acceptor substituents.