Carbon-13 NMR study of some isomericn-nitroindazole derivatives
摘要:
AbstractThe 13C NMR spectra of 1,5‐ and 2,x‐dinitroindazoles “x=4‐7” and 3‐bromo‐1,x‐dinitroindazoles are recorded and discussed. The data on he 2,x‐dinitroindazoles confirm our previous structurea assignment based on 1H NMR spectroscopy. The 13C NMR spectra established that in the novel 3‐bromo‐1,x‐dinitroindazoles the N‐nitro group is attached at N‐1.