Trityl tetrakis(pentafluorophenyl)borate

CAS No.：136040-19-2

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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 Reference	136040-19-2
EPA Substance Registry System	Methylium, 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

Provider	Language
ACROS	English

Trityl tetrakis(pentafluorophenyl)borate Usage And Synthesis

Synthesis	A 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 Properties	Yellow to mustard colored powder
Synthesis	trityl 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 organics	soluble 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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