82849-53-4

Basic information

• Product Name: dimethyl 3-(p-methylphenyl)-2,2-dicyanocyclobutane-1,1-dicarboxylate
• Synonyms: dimethyl 3-(p-methylphenyl)-2,2-dicyanocyclobutane-1,1-dicarboxylate
• CAS NO: 82849-53-4
• Molecular Weight: 312.325
• Mol File: 82849-53-4.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: dimethyl 3-(p-methylphenyl)-2,2-dicyanocyclobutane-1,1-dicarboxylate(CAS DataBase Reference)
• NIST Chemistry Reference: dimethyl 3-(p-methylphenyl)-2,2-dicyanocyclobutane-1,1-dicarboxylate(82849-53-4)
• EPA Substance Registry System: dimethyl 3-(p-methylphenyl)-2,2-dicyanocyclobutane-1,1-dicarboxylate(82849-53-4)

Safety Data

• Hazardous Substances Data: 82849-53-4(Hazardous Substances Data)

Upstream product

• 108-59-8 malonic acid dimethyl ester 
• 3298-40-6 mesoxalate de methyle 
• 622-97-9 1-ethenyl-4-methylbenzene 
• 82849-49-8 dimethyl 2,2-dicyanoethene-1,1-dicarboxylate 

Relevant articles and documents

Dimethyl 1,1-Dicyanoethene-2,2-dicarboxylate, a New Electophilic Olefin

Dimethyl 1,1-dicyanoethene-2,2-dicarboxylate (DDED), a new electrophilic tetrasubstituted olefin, was synthesized via Knoevenagel condensation.DDED spontaneously copolymerizes with electron-rich olefins such as styrene and p-methylstyrene.In the copolymerization, the bulky growing styryl radicals add to the dicyano-bearing carbon of DDED.Cyclobutane adducts are obtained in thermal reactions with styrene, p-methylstyrene, p-methoxystyrene and vinyl ethers via a tetramethylene intermediate.Bond formation occurs at diester end of DDED due to the greater stabilization provided by the dicyano group and the minimal steric requirements of the attacking methylene.