64499-81-6

Basic information

• Product Name: DIOXOLANE416
• Synonyms: DIOXOLANE416;2,2-Bis(trifluoroMethyl)tetrachloro-1,3-dioxolane
• CAS NO: 64499-81-6
• Molecular Formula: C₅Cl₄F₆O₂
• Molecular Weight: 347.8547192
• Mol File: 64499-81-6.mol

Chemical Properties

• Appearance: /
• CAS DataBase Reference: DIOXOLANE416(CAS DataBase Reference)
• NIST Chemistry Reference: DIOXOLANE416(64499-81-6)
• EPA Substance Registry System: DIOXOLANE416(64499-81-6)

Safety Data

• Hazardous Substances Data: 64499-81-6(Hazardous Substances Data)

Upstream product

• 1765-26-0 2,2-bis(trifluoromethyl)-1,3-dioxolane 

Downstream Products

• 60644-92-0 2,2-bis(trifluoromethyl)-4,5-dichloro-4,5-difluoro-1,3-dioxolane 
• 135014-05-0 2,2-bis(trifluoromethyl)-4-chloro-4,5,5-trifluoro-1,3-dioxolane 
• 37697-64-6 4,5-Difluoro-2,2-bis(trifluoromethyl)-1,3-dioxole 

Relevant articles and documents

Method for synthesizing chloro-2, 2-di (perfluoro substituent)-1, 3-dioxolane compound

The invention discloses a method for synthesizing chloro-2, 2-di (perfluoroalkyl)-1, 3-dioxolane. The method comprises the following steps: mixing 2, 2-di (perfluoroalkyl)-1, 3-dioxolane liquid with acatalyst, introducing chlorine gas, heating to the temperature of 100-200 DEG C, and carrying out chlorination reaction to obtain 4, 4, 5, 5-tetrachloro-2, 2-di (perfluoro substituent)-1, 3-dioxolane. The perfluoroalkyl is independently selected from C1-4 perfluoroalkyls or fluorine atoms. According to the method, liquid-phase chlorination reaction is adopted, the reaction temperature is effectively reduced, the activity of the catalyst in the reaction is high, the side reaction is relieved, the requirements on equipment are reduced, the method is safe and simple to operate, the quality stability of the obtained product is high, and the industrial application feasibility is high.

A preparation method for halogenated 2,2-bis(perfluoro substituent)-1,3-dioxolane type compounds

A gaseous-phase preparation method for halogenated 2,2-bis(perfluoro substituent)-1,3-dioxolane type compounds is disclosed. The method includes, reacting 2,2-bis(perfluoro substituent)-1,3-dioxolane with Cl2 and HF with the existence of a catalyst to obtain a corresponding halogenated 2,2-bis(perfluoro substituent)-1,3-dioxolane. The method can achieve a one-step reaction, and has characteristics of simple process steps, simple equipment, low energy consumption, and small amounts of the three wastes. The prepared halogenated 2,2-bis(perfluoro substituent)-1,3-dioxolane compounds are suitable for use as a polymerization monomer.

Thermal Decomposition of Fluorinated Dioxolane Carboxylates

Synthesis of fluorodioxole olefin monomers by thermal decomposition of fluorinated dioxolane carboxylic acid and the corresponding acyl chloride was explored.Complex product formation is observed, including acyl fluoride from C1-F exchange, the hydro-dioxolane from proton abstraction, the cyclic ether ketone from dioxolane ring opening, and the epoxy acid fluoride from thermal rearrangement.The product distribution is strongly dependent upon reaction conditions.The main influential factors include the reaction temperature, the base used for the reaction, the presence or absence of solvent, and the counter ion associated with the intermediate salt.A mechanism is proposed to rationalize both the results and the product distribution.Methods to make authentic samples for product analysis are reported. Key Words Fluorine; Dioxolane; Dioxole; Thermal decomposition; Pyrolysis; Acid halide; Carboxylate; Fluoroolefin; Heterocyclic; Fluorocarbon.