380-48-3Relevant academic research and scientific papers
Hydrofluoroether continuous synthetic method
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Paragraph 0036-0037, (2018/06/26)
The invention discloses a hydrofluoroether continuous synthetic method which is characterized by comprising the following steps of mixing alcohol, a solvent and a composite catalyst, heating a mixtureto 50 DEG C, then introducing the heated mixture and fluorine-containing olefin into a tubular reactor together for reaction, and separating a reaction liquid to obtain a hydrofluoroether product, wherein the molar ratio of the alcohol, the solvent, the composite catalyst and the fluorine-containing olefin is 1 to (1-5) to (0.1-0.25) to (1-1.5), the reaction temperature is 50-150 DEG C, and the reaction time is 5-25s. By adopting the hydrofluoroether continuous synthetic method provided by the invention, a synthetic process is improved so as to be the hydrofluoroether continuous synthetic method which is simple in synthetic process, large in operation flexibility and low in cost and is environmentally friendly.
Preparation of difluoroacetic acid fluoride and difluoroacetic acid esters
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, (2008/06/13)
A method for preparing difluoroacetic acid fluoride, which comprises reacting a 1-alkoxy-1,1,2,2-tetrafluoroethane of the formula HCF2 CF2 OR1 wherein R1 is a C1-4 alkyl group in a gas phase in the presence of a metal oxide catalyst.
