Sv. Rubashko et al., THE INTERACTION OF ACETYLPHENYLAMINO)-3-PIPERIDINO-1,4-NAPHTHOQUINONEWITH HYDROXYLAMINE AND HYDRAZINES, Russian chemical bulletin, 43(6), 1994, pp. 1024-1026
With acid catalysts acetylphenylamino)-3-piperidino-1,4-naphthoquinone
reacts with hydroxylamine and aryl hydrazines exclusively at the carb
onyl group of its side chain. The products corresponding to the conden
sation at the naphthoquinone C=O group could not be detected.