3-FLUORO-4-IODOTOLUENE Chemical Properties

Boiling point:

138-139 °C/9 mmHg (lit.)

Density 

1.803 g/mL at 25 °C (lit.)

refractive index 

n20/D 1.5810(lit.)

Flash point:

199 °F

storage temp. 

Keep in dark place,Sealed in dry,Room Temperature

Appearance

Pink to red Liquid

Sensitive 

Light Sensitive

CAS DataBase Reference

452-79-9(CAS DataBase Reference)

Safety Information

Hazard Codes 

Xi

Risk Statements 

52/53

Safety Statements 

23-24/25-61-60

WGK Germany 

3

Hazard Note 

Irritant

HS Code 

29039990

MSDS

• Language:English Provider:SigmaAldrich

3-FLUORO-4-IODOTOLUENE Usage And Synthesis

Chemical Properties

colorless to light yellow liqui

Synthesis

A solution was prepared by dissolving 4-bromo-3-fluorotoluene (10 g) in tetrahydrofuran (THF, 50 mL) under a dry nitrogen atmosphere and cooled to -72 °C. Subsequently, a hexane solution (35 mL) of 1.6 M n-butyllithium was slowly added at -72 °C, the reaction temperature was controlled not to exceed -65 °C and stirring was continued for 1 h at this temperature. A solution prepared by dissolving iodine (14.8 g) in THF (30 mL) was added to the above reaction mixture at -72 °C, ensuring that the internal temperature was not higher than -60 °C, after which it was slowly warmed to room temperature. Upon completion of the reaction, saturated aqueous ammonium chloride solution and hexane were added to the mixture to separate the organic layer. The organic layer was sequentially washed twice with 10% aqueous sodium sulfite, then with saturated brine and finally dried with anhydrous sodium sulfate. The desiccant was removed by filtration and the organic solvent was removed by distillation under reduced pressure. The residue was purified by silica gel column chromatography to give 13.0 g of 3-fluoro-4-iodotoluene as a yellow liquid.

References

[1] Patent: US2014/275577, 2014, A1. Location in patent: Paragraph 0166; 0167

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