ethyl (2E)-2-(ethoxymethylene)-4,4-difluoro-3-oxo-butanoate is an organic compound with the chemical formula C8H11F2O4. The following is a description of its nature, use, preparation and safety information:
Nature:
-Appearance: colorless liquid
-Melting point:-5 ° C
-Boiling point: 173-174 ° C
-Density: 1.348g/cm³
-Solubility: Soluble in organic solvents such as alcohols and ethers, insoluble in water
-Vapor pressure: 3.1 mmHg (at 25 ° C)
Use:
- ethyl (2E)-2-(ethoxymethylene)-4,4-difluoro-3-oxo-butanoate is mainly used as an intermediate for pesticides and insecticides.
-It can generate various organophosphorus pesticides, such as fipronil, through further reactions.
Method:
- ethyl (2E)-2-(ethoxymethylene)-4,4-difluoro-3-oxo-butanoate is generally prepared by reacting ethyl alcohol with ethyl acetate difluorounder acidic conditions.
Safety Information:
- ethyl (2E)-2-(ethoxymethylene)-4,4-difluororo-3-oxo-butanoate is an organic compound with certain toxicity. Use should follow the relevant safety procedures.
-During operation, care should be taken to avoid skin contact, eye contact and inhalation.
-In case of contact, immediately flush the affected area with plenty of water and seek medical assistance if necessary.
-Storage should be sealed and kept away from fire and oxidizing agents.
-in the waste disposal, should be in accordance with the relevant laws and regulations for the correct treatment, to prevent pollution to the environment.