304881-43-4

Basic information

• Product Name: 4,4-difluoro-1,3-dioxolan-2-one
• Synonyms: 1,3-dioxolan-2-one, 4,4-difluoro-; 4,4-Difluoro-1,3-dioxolan-2-one
• CAS NO: 304881-43-4
• Molecular Formula: C₃H₂F₂O₃
• Molecular Weight: 124.043
• Mol File: 304881-43-4.mol
• Article Data: 6

Chemical Properties

• Boiling Point: 203.919°C at 760 mmHg
• Flash Point: 75.258°C
• Density: 1.544g/cm³
• Vapor Pressure: 0.271mmHg at 25°C
• Refractive Index: 1.36
• CAS DataBase Reference: 4,4-difluoro-1,3-dioxolan-2-one(CAS DataBase Reference)
• NIST Chemistry Reference: 4,4-difluoro-1,3-dioxolan-2-one(304881-43-4)
• EPA Substance Registry System: 4,4-difluoro-1,3-dioxolan-2-one(304881-43-4)

Safety Data

• Hazardous Substances Data: 304881-43-4(Hazardous Substances Data)

Upstream product

• 114435-02-8 monofluoroethylene carbonate 
• 96-49-1 [1,3]-dioxolan-2-one 
• 124-38-9 carbon dioxide 

Relevant articles and documents

Preparation method of 4,4-difluoroethylene carbonate

The invention relates to a preparation method of 4,4-difluoroethylene carbonate. The preparation method of 4,4-difluoroethylene carbonate mainly comprises the following steps: (1) performing epoxidation reaction on 1,1-difluoroethylene to obtain 1,1-difluoroethylene oxide; (2) conducting reaction on 1,1-difluoroethylene oxide and carbon dioxide to obtain 4,4-difluoroethylene carbonate. Compared with the prior art, the preparation method has the advantages that the obtained product has higher selectivity and yield, the raw material 1,1-difluoroethylene is cheap and easily available, the economic benefit is significant, and the preparation method is suitable for industrialized production.

Manufacturing method and apparatus of 4-fluoroethylene carbonate control system of autonomous intelligent distributed control modules

Disclosed herein is a method of producing 4-fluoroethylene carbonate, in which ethylene carbonate reacts with a mixture of fluorine and nitrogen gases. The method comprises feeding a mixture gas of fluorine gas and nitrogen gas into a reactor having ethylene carbonate charged therein, so as to react the ethylene carbonate with the mixture gas of the fluorine gas and the nitrogen gas. The mixture gas fed in the reactor is regulated to have a desired bubble size while passing through a gas bubble regulating column, in which a packing for a packed column is packed. In the method, EC directly reacts with F2/N2 mixture gas to produce FEC, thus a purification process is simple and it is possible to produce FEC at high conversion efficiency and selectivity.

Electrolytic partial fluorination of organic compound. Part: 53 Highly regioselective anodic mono- and difluorination of 4-arylthio-1,3-dioxolan-2-ones. A marked solvent effect on fluorinated product selectivity

Anodic fluorination of 4-arylthio-1,3-dioxolan-2-ones was investigated using various supporting fluoride salts and solvents. Their fluoro-desulfurization took place predominantly in Et4NF·5HF/CH2Cl2 while the use of Et4NF·4HF/DME resulted in α-fluorination, without the desulfurization, selectively. Electrolytic solvents affected markedly the product selectivity as compared with supporting fluoride salts. This is the first example of a solvent effect on the fluorinated product selectivity in the anodic fluorination.