Trityl tetrakis(pentafluorophenyl)borate
Trityl tetrakis(pentafluorophenyl)borate
  • CAS No.:136040-19-2
Other grades of this product :
Trityl tetrakis(pentafluorophenyl)borate Basic information
Synthesis
Product Name:Trityl tetrakis(pentafluorophenyl)borate
Synonyms:Triphenylmethylium tetrakis(perfluorophenyl)borate;TRITYL TETRAKIS(PENTAFLUOROPHENYL)BORATE;TRITYL(TETRAPENTAFLUOROPHENYL)BORATE 98+%;Trityltetrakis(pentafluorophenyl)borat;TRITYL(TETRAPENTAFLUOROPHENYL)BORATE;TRIPHENYLMETHYLCARBENIUM TETRAKIS(PENTAFLUOROPHENYL)BORATE;Trityltetra(pentafluorophenyl)borate,min.98%;METHYLIUM,TRIPHENYL-,TETRAKIS(PENTAFLUOROPHENYL)BORATE(1-)
CAS:136040-19-2
MF:C43H15BF20
MW:922.37
EINECS:
Product Categories:organofluorine compounds
Mol File:136040-19-2.mol
Trityl tetrakis(pentafluorophenyl)borate Chemical Properties
Melting point 180-185℃
storage temp. under inert gas (nitrogen or Argon) at 2-8°C
solubility soluble in Methanol
form Powder
color Yellow to mustard
Stability:hygroscopic
CAS DataBase Reference136040-19-2
EPA Substance Registry SystemMethylium, triphenyl-, tetrakis(pentafluorophenyl)borate(1-) (136040-19-2)
Safety Information
Hazard Codes Xn
Risk Statements 36/37/38-20/21/22
Safety Statements 36/37/39-26-22
TSCA Yes
HazardClass 8
HS Code 29319000
MSDS Information
ProviderLanguage
ACROS English
Trityl tetrakis(pentafluorophenyl)borate Usage And Synthesis
SynthesisA round-bottom flask was charged with K[B(C6F5)4] (0.720 g, 1 mmole) and Ph3CCl (0.280g, 1 mmole) in an argon glove box. The solids were dissolved in dichloromethane (~100 mL), and the reaction mixture was allowed to stir under an argon atmosphere. The solution became yellow-orange immediately. After stirring for 1 h, the solution was then filtered through Celite to remove KCl. The solvent volume was reduced to ~10 mL on a rotary evaporator to give a dark red oil. Addition of pentane resulted in yellow precipitate and a red oil. With sonication, the oil dispersed to give only yellow precipitate. The solid was isolated by filtration and dried in vacuo. Alternatively, the crude filtrate could be layered with pentane, and over the course of days to hours. Crystalline product formed. Isolated yield: 0.703 grams, 76%. 
Chemical PropertiesYellow to mustard colored powder
Synthesistrityl tetrakis(pentafluorophenyl)borate is prepared by mixing LiB(C6F5)4 and trityl chloride in hexane and refluxing overnight. It is prepared also by one-pot procedure starting from bromopentafluorobenzene.
Solubility in organicssoluble in CH2Cl2, MeOH, and acetone, but its yellow color disappears because these solvents coordinate to the trityl salt.
Trityl tetrakis(pentafluorophenyl)borate Preparation Products And Raw materials

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