title: Cyclization of 1-benzoyl-2-(3,4-dimethoxy)-benzylidenehydrazone into 1-phenyl-6,7-dimethoxyphthalazine during hydrolysis with sodium hydroxide.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D003500:Cyclization; D006571:Heterocyclic Compounds; D006835:Hydrazones; D006868:Hydrolysis; D008722:Methods
chemical_list: D006571:Heterocyclic Compounds; D006835:Hydrazones