| Identification | Back Directory | [Name]
Trityl tetrakis(pentafluorophenyl)borate | [CAS]
136040-19-2 | [Synonyms]
TRITYL(TETRAPENTAFLUOROPHENYL)BORATE
Trityltetrakis(pentafluorophenyl)borat
TRITYL TETRAKIS(PENTAFLUOROPHENYL)BORATE
TRITYL(TETRAPENTAFLUOROPHENYL)BORATE 98+%
Trityl tetrakis(pentafluorophenyl)borate,97%
Trityltetra(pentafluorophenyl)borate,min.98%
Trityltetra(pentafluorophenyl)borate, min. 98%
Triphenylmethylium tetrakis(perfluorophenyl)borate
Triphenylmethyl tetrakis-(pentafluorophenyl)-borate
TriphenylMethyliuM Tetrakis(pentafluorophenyl)borate
TRIPHENYLMETHYLCARBENIUM TETRAKIS(PENTAFLUOROPHENYL)BORATE
METHYLIUM,TRIPHENYL-,TETRAKIS(PENTAFLUOROPHENYL)BORATE(1-)
Triphenylcarbenium Tetrakis(pentafluorophenyl)borate
Tritylium Tetrakis(pentafluorophenyl)borate | [Molecular Formula]
C24BF20.C19H15 | [MDL Number]
MFCD03426981 | [MOL File]
136040-19-2.mol | [Molecular Weight]
922.36 |
| Hazard Information | Back Directory | [Chemical Properties]
Yellow to mustard colored powder | [Uses]
Used as a pharmaceutical intermediate. | [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. |
| Questions And Answer | Back Directory | [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%. |
|
|