title: [Studies on ring-opening of heterocyclic compounds. V. The reaction of N-(2,4-dinitrophenyl)pyridinium chloride with active methylene compounds].
mesh_terms: D000081:Acetamides; D000085:Acetates; D000577:Amides; D055598:Chemical Phenomena; D002621:Chemistry; D008314:Malonates; D009570:Nitriles; D009578:Nitrobenzenes; D011726:Pyridinium Compounds
chemical_list: D000081:Acetamides; D000085:Acetates; D000577:Amides; D008314:Malonates; D009570:Nitriles; D009578:Nitrobenzenes; D011726:Pyridinium Compounds