sodium hydroxide; hydroxylamine hydrochloride in 1,4-dioxane Ambient temperature;

1: 98 percent / aq. NaOH, benzyltributylammonium chloride / CH2Cl2 / Ambient temperature 2: 91 percent / NH2OH*HCl, aq. NaOH / dioxane / Ambient temperature View Scheme

in toluene Heating;