Boron trifluoride tetrahydrofuran complex Chemical Properties

Melting point:

11-13 °C (lit.)

Boiling point:

180 °C (lit.)

Density 

1.268 g/mL at 25 °C (lit.)

vapor pressure 

11Pa

Flash point:

198 °F

storage temp. 

Store below +30°C.

solubility 

Miscible with dimethyl formamide.

form 

liquid

explosive limit

2.3-17.7%(V)

Water Solubility 

hydrolysis

Sensitive 

Moisture Sensitive

InChI

InChI=1S/C4H8BF3O/c6-5(7,8)9-3-1-2-4-9/h1-4H2

InChIKey

XYMZNNGTHKHCJH-UHFFFAOYSA-N

SMILES

[B+3](O1CCCC1)([F-])([F-])[F-]

CAS DataBase Reference

462-34-0(CAS DataBase Reference)

EPA Substance Registry System

Boron, trifluoro(tetrahydrofuran)-, (T-4)- (462-34-0)

Safety Information

Hazard Codes 

C,T

Risk Statements 

34-48/23-35-20/22

Safety Statements 

26-27-36/37/39-45-28A-23-28

RIDADR 

UN 3265 8/PG 2

WGK Germany 

1

Hazard Note 

Toxic/Corrosive

TSCA 

TSCA listed

HazardClass 

8

PackingGroup 

II

HS Code 

29321900

Storage Class

6.1C - Combustible acute toxic Cat.3
toxic compounds or compounds which causing chronic effects

Hazard Classifications

Acute Tox. 4 Inhalation
Acute Tox. 4 Oral
Eye Dam. 1
Skin Corr. 1B
STOT RE 1 Inhalation

MSDS

• Language:English Provider:Boron trifluoride tetrahydrofuran complex
• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

Boron trifluoride tetrahydrofuran complex Usage And Synthesis

Chemical Properties

Colorless to light yellow liqui

Uses

Reactant or reagent involved in:

• Deoxofluorination of alcohols and carbonyls
• Synthesis of methacrylate-PEG-methacrylate-boron trifluoride self-doped gel polymer electrolytes
• Hydroboration-oxidation of divinylferrocene

Reagent involved in the synthesis of biologically active molecules such as:

• NK1 receptor antagonists
• Complex polyketide natural products
• Selective serotonin reuptake inhibitors

Flammability and Explosibility

Non flammable

reaction suitability

core: boron
reagent type: Lewis acid
reagent type: catalyst

Synthesis

CN202010573013.3 provides a method of preparing a boron trifluoride tetrahydrofuran complex, said method of preparation enables instantaneous complexation of tetrahydrofuran and boron trifluoride, is able to avoid oxidative discoloration of tetrahydrofuran under vacuum conditions, adopts an independent desulphurization process, eliminates the process of distillation and desulphurization, and reduces the water and sulfur dioxide contents in the product.

Using the first vacuum pump 2, the second vacuum pump 12 and the third vacuum pump 17 to evacuate the said tetrahydrofuran vaporization tank 6, the reaction tank 13 and the desulfurization tank 21 to -0.1 MPa, respectively, and keep them for 1h;

Under the condition of stirring (80 rpm), 50 kg of tetrahydrofuran was added to the tetrahydrofuran vaporization tank 6 to heat the tetrahydrofuran in said tetrahydrofuran vaporization tank 6 through the first steam heating device, and to maintain the temperature of said tetrahydrofuran at 80??C and to reach the gas-liquid equilibrium state (0.15 MPa);

The cold water was passed through the cold water inlet 9, and the tetrahydrofuran vapor was passed into the reaction tank 13 at the rate of 25 kg/h and the boron trifluoride vapor was passed into the reaction tank 13 at the rate of 23.61 kg/h to start the complexation reaction, and at the end of the reaction the temperature of the reaction solution was 80 ?? C. and cooled down to 50 ?? C. under the condition of stirring (80 revolutions/min) to obtain the crude product of the boron trifluoride tetrahydrofuran complex;

_ x000D_

The crude product of said boron trifluoride tetrahydrofuran complex is conveyed into a desulfurization tank and heated to 50??C by a second steam heating device under stirring (80 rpm) and maintaining vacuum (-0.1 MPa) conditions for 3h for desulfurization, then cooled down to 25??C and discharged to obtain said boron trifluoride tetrahydrofuran.

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