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 CH2Cl2, MeOH, and acetone

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

• Language:English Provider:ACROS

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

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.

Trityl tetrakis(pentafluorophenyl)borate(136040-19-2)Related Product Information

• Trityl candesartan
• Sodium tetraphenylboron
• Potassium chloride
• Ethylboronic acid
• Phenylboronic acid
• TETRAPHENYLOLETHANE GLYCIDYL ETHER
• Triphenylmethyl Chloride
• Trityl candesartan cilexetil
• Trityl Irbesartan
• Methylboronic acid
• 1,5-Diphenylcarbazide
• 4-Biphenylcarboxylic acid
• Fluoroborate, BF{|: glass body: double junction electrode: kit
• TRIS(PENTAFLUOROPHENYL)BORANE
• Trityl tetrakis(pentafluorophenyl)borate
• Borate