2646-83-5

Basic information

• Product Name: 3,3,4,4-tetrafluorocyclohexene
• Synonyms: 3,3,4,4-tetrafluorocyclohexene
• CAS NO: 2646-83-5
• Molecular Weight: 154.107
• Mol File: 2646-83-5.mol
• Article Data: 4

Chemical Properties

• CAS DataBase Reference: 3,3,4,4-tetrafluorocyclohexene(CAS DataBase Reference)
• NIST Chemistry Reference: 3,3,4,4-tetrafluorocyclohexene(2646-83-5)
• EPA Substance Registry System: 3,3,4,4-tetrafluorocyclohexene(2646-83-5)

Safety Data

• Hazardous Substances Data: 2646-83-5(Hazardous Substances Data)

Upstream product

• 116-14-3 polytetrafluoroethylene 
• 106-99-0 buta-1,3-diene 
• 356-77-4 1,1,2,2-tetrafluoro-3-vinylcyclobutane 
• 75-45-6 Chlorodifluoromethane 

Downstream Products

• 1429051-74-0 methyl 4,4,5,5-tetrafluoro-1-(4-methoxyphenyl)-3a,4,5,6,7,7a-hexahydro-1H-indazole-3-carboxylate 
• 1429051-76-2 methyl 6,6,7,7-tetrafluoro-1-(4-methoxyphenyl)-3a,4,5,6,7,7a-hexahydro-1H-indazole-3-carboxylate 
• 1429051-75-1 methyl 4,4,5,5-tetrafluoro-1-(4-fluorophenyl)-3a,4,5,6,7,7a-hexahydro-1H-indazole-3-carboxylate 
• 1429051-77-3 methyl 6,6,7,7-tetrafluoro-1-(4-fluorophenyl)-3a,4,5,6,7,7a-hexahydro-1H-indazole-3-carboxylate 
• 38573-88-5 1-bromo-2,3-difluorobenzene 
• 36556-47-5 3-chloro-1,2-difluorobenzene 
• 367-11-3 ortho-difluorobenzene 
• 348-61-8 1-bromo-3,4-difluorobenzene 
• 1805115-08-5 2-fluoro-3-chloro-4-nitrophenol 
• 82419-40-7 2-fluoro-3-chloro-6-nitrophenol 
• 771-69-7 2,3,4-trifluoronitrobenzene 
• 53780-44-2 1-Chloro-2,3-difluoro-5-nitrobenzene 

Relevant articles and documents

Three-step regioselective synthesis of 2,3-difluorohalobenzenes using tetrafluoroethylene and buta-1,3-diene as starting building blocks

The gas-phase copyrolysis of tetrafluoroethylene and buta-1,3-diene in a flow tube reactor at 490–510 °C gives 3,3,4,4-tetrafluorocyclohex-1-ene, which is selectively converted to 1-bromo- or 1-chloro-2,3-difluorobenzene via intermediate steps of halogenation and dehydrohalogenation.

Generation of 1-aryl-3-methoxycarbonylnitrilimines and their reaction with halogen-containing unsaturated compounds

Thermal decomposition of 1-(4-methoxyphenyl)- and 1-(4-fluorophenyl) hepta(methoxycarbonyl)-3a,7a-dihydroindazoles at 135 C in the presence of allyl or propargyl halides leads to the elimination of hexamethyl benzenehexacarboxylate and the formation of the corresponding pyrazolines or pyrazoles as the products of 1,3-dipolar cycloaddition of 1-aryl-3- methoxycarbonylnitrilimines to the multiple bonds of the substrates used. In the case of vinyl halides, the products of the target reactions are either obtained in low yields or nonexistent, with a side conversions taking place instead. Thus, for example, in the case of 1,1-dichloro-4-methylpenta-1,3-diene, besides hexamethyl benzenehexacarboxylate, 3,5,5-trichloro-2-methylpent-4-en-2-ol and arylchlorohydrazones MeO2CC(Cl)=N-NHAr were unexpectedly isolated as the main products, as well.