1,4-DIFLUORO-2,5-DIMETHOXYBENZENE Property

Melting point:

123-125 °C (lit.)

Boiling point:

193.7±35.0 °C(Predicted)

Density 

1.193±0.06 g/cm3(Predicted)

storage temp. 

Sealed in dry,Room Temperature

CAS DataBase Reference

199866-90-5(CAS DataBase Reference)

Safety

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-36

WGK Germany 

3

Hazard Note 

Irritant

HS Code 

2909309090

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

1,4-DIFLUORO-2,5-DIMETHOXYBENZENE Chemical Properties,Usage,Production

Uses

1,4-Difluoro-2,5-dimethoxybenzene is suitable reagent used in a study to investigate the direct anodic electrodeposition of polypyrrole, poly(3,4-ethylenedioxythiophene) and polythiophene on Cu electrodes by employing a corrosion inhibitor. It may be used in the following studies:

• Synthesis of 7-fluoro-5,8-dimethoxy-1-naphthol.
• As novel precursor for the iterative double benzyne-furan Diels-Alder reactions.
• Synthesis of 1,4-bis(phosphino)-2,5-difluoro-3,6-dimethoxybenzenes.

General Description

1,4-Difluoro-2,5-dimethoxybenzene is an alkoxy arene. It undergoes 1:3 reaction with TaF₅ in chloroform at 40-50°C to afford long-lived radical cation salts [1,4-F₂-2,5-(MeO)₂C₆H₂][Ta₂F₁₁].