84655-70-9

Basic information

• Product Name: 6-<(dimethylamino)methyleneamino>-1,2-dihydro-1-(4-methylphenyl)-2-oxo-3,5-pyridinedicarbonitrile
• CAS NO: 84655-70-9
• Molecular Weight: 305.339
• Mol File: 84655-70-9.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 6-<(dimethylamino)methyleneamino>-1,2-dihydro-1-(4-methylphenyl)-2-oxo-3,5-pyridinedicarbonitrile(CAS DataBase Reference)
• NIST Chemistry Reference: 6-<(dimethylamino)methyleneamino>-1,2-dihydro-1-(4-methylphenyl)-2-oxo-3,5-pyridinedicarbonitrile(84655-70-9)
• EPA Substance Registry System: 6-<(dimethylamino)methyleneamino>-1,2-dihydro-1-(4-methylphenyl)-2-oxo-3,5-pyridinedicarbonitrile(84655-70-9)

Safety Data

• Hazardous Substances Data: 84655-70-9(Hazardous Substances Data)

Upstream product

• 106-49-0 p-toluidine 
• 84655-66-3 6-<(dimethylamino)methyleneamino>-1,2-dihydro-2-imino-1-(4-methylphenyl)-3,5-pyridinedicarbonitrile 
• 51767-89-6 4-chloro-7-methyl-5,7-diaza-1,3,5-octatriene-1,1,3-tricarbonitrile 
• 130484-97-8 6-amino-1,2-dihydro-1-(4-methylphenyl)-2-oxo-3,5-pyridinedicarbonitrile 
• 4637-24-5 N,N-dimethyl-formamide dimethyl acetal 

Relevant articles and documents

Syntheses with Nitriles. 62. 3,5-Dicyanopyridine Derivatives by Vilsmeier Formylation of Malononitrile and Tetracyanopropenides (2)

Reaction of malononitrile with dimethylformamide and phosphorus oxychloride gave (dimethylaminomethylene)malononitrile (1), 4-chloro-7-methyl-5,7-diaza-1,3,5-octatriene-1,1,3-tricarbonitrile (3a) and the pyridine 2.Compounds 3a and 3b as well as the triaza-derivative 3c may also be obtained by treatment of tetracyanopropenides 4a-c with dimethylformamide and phosphorus oxychloride.Ring closures were achieved by heating 3 under alkaline or acidic conditions.Substitution of chlorine in 3a with aromatic amines provided 1-aryl-1,2-dihydro-2-imino-3,5-pyridinedicarbonitriles 7.Hydrolysis of 7 gave the 2-oxo-derivatives 8.