86651-90-3

Basic information

• Product Name: 2,4,5-Trifluoro-3,4,6-trimethyl-cyclohexa-2,5-dienone
• CAS NO: 86651-90-3
• Molecular Weight: 190.165
• Mol File: 86651-90-3.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 2,4,5-Trifluoro-3,4,6-trimethyl-cyclohexa-2,5-dienone(CAS DataBase Reference)
• NIST Chemistry Reference: 2,4,5-Trifluoro-3,4,6-trimethyl-cyclohexa-2,5-dienone(86651-90-3)
• EPA Substance Registry System: 2,4,5-Trifluoro-3,4,6-trimethyl-cyclohexa-2,5-dienone(86651-90-3)

Safety Data

• Hazardous Substances Data: 86651-90-3(Hazardous Substances Data)

Upstream product

• 593-53-3 Methyl fluoride 
• 703-87-7 1,4-dimethyl-2,3,5,6-tetrafluorobenzene 

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.