3.27 g of vanillin oxime is dissolved in 40 mL of methanol and then 3.7 g of ammonium formate and 2.6 g of zinc dust are added to this solution and refluxed for 15 minutes under agitation. The mixture is then cooled down, filtered and washed with 10 mL of methanol. The solvent is then removed from the residue by distillation and it is cooled down. 5o mL of cold water is added to the residue, filtered and washed with cold ethanol. Recrystallize from hot ethanol.
Addition of water