86651-83-4

Basic information

• Product Name: 3,4-dimethyltetrafluorocyclohexa-2,5-dien-1-one
• CAS NO: 86651-83-4
• Molecular Weight: 194.129
• Mol File: 86651-83-4.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 3,4-dimethyltetrafluorocyclohexa-2,5-dien-1-one(CAS DataBase Reference)
• NIST Chemistry Reference: 3,4-dimethyltetrafluorocyclohexa-2,5-dien-1-one(86651-83-4)
• EPA Substance Registry System: 3,4-dimethyltetrafluorocyclohexa-2,5-dien-1-one(86651-83-4)

Safety Data

• Hazardous Substances Data: 86651-83-4(Hazardous Substances Data)

Upstream product

• 593-53-3 Methyl fluoride 
• 771-56-2 2,3,4,5,6-pentafluorotoluene 

Relevant articles and documents

FLUORINE-CONTAINING CARBONIUM IONS. XIX. GENERATION OF STABLE BENZENONIUM IONS BY ELECTROPHYLIC METHYLATION OF POLYFLUORINATED METHYLBENZENES

Stable benzenonium ions corresponding to the addition of a methyl cation at the positions of the ring occupied both by a methyl group and by a fluorine atom were generated by the action of methyl fluoride in antimony pentafluoride on pentafluorotoluene and tetrafluoro-p- and tetrafluoro-m-xylenes in SO2ClF at -80 deg C.If the temperature of the solution is raised to -30 deg C, 1,1,4-trimethyl-2,3,5,6-tetrafluorobenzenonium ion generated by methylation of 2,3,5,6-tetrafluoro-p-xylene isomerizes to 1,2,5-trimethyl-1,3,4,6-tetrafluorobenzenonium ion.This evidently indicates a difference between the kinetically controlled orientation in the methylation reaction realized at -80 deg C and the equilibrium ratio of the isomeric arenonium ions.