Reduction of 3,5-dinitro-2-pyridyl derivatives with sodium borohydride part II. Application of proton nuclear magnetic resonance spectroscopy to structure problems
Abstract
The mechanism of the reduction of 2-methylamino-3,5-dinitropyridine is elucidated by carrying out the reaction with sodium boro-hydride and -deuteride in water and deuterium oxide as solvents. The tautomeric structure and stereochemistry of the tetrahydro-reduction product is discussed with reference to the n.m.r. spectra.