59426-77-6Relevant articles and documents
Synthetic method for heptafluoropropyl trifluoromethyl ether
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Paragraph 0019; 0020; 0022; 0024; 0026, (2018/04/21)
The invention relates to a synthetic method for heptafluoropropyl trifluoromethyl ether. The synthetic method comprises the following steps: with trifluoromethyl hypofluoride and perfluoropropylene asraw materials, subjecting gaseous trifluoromethyl hypofluoride and liquid perfluoropropylene to generate a free-radical addition reaction at a low temperature so as to generate the heptafluoropropyltrifluoromethyl ether. The invention provides a chemical method to synthesize perfluoroalkyl ether. The method provided by the invention has the following advantages: the use of highly-active fluorinegas or an expensive catalyst is not needed; a previously-produced mixture of trifluoromethyl hypofluoride and fluorophosgene can be utilized for polar synthesis; production steps are simplified; meanwhile, the perfluoroalkyl ether has the advantages of high yield, simple synthetic method, and a certain industrial popularization value.
Technology for the preparation of perfluoro-organic compounds
Moldavskii, Dmitrii D.,Bispen, Tatjana A.,Kaurova, Galina I.,Furin, Georgii G.
, p. 157 - 167 (2007/10/03)
Fluorination by elemental fluorine of fluorine-containing alkenes, alkanes, ethers and tertiary amines was investigated, aimed at obtaining the perfluorinated analogs. The factors affecting yield of the target compounds were studied. Elements of technology were elucidated.
The electrochemical fluorination of N-containing carboxylic acids (Part 4). Fluorination of methyl 3-dialkylamino-isobutyrates and methyl 3-dialkylamino-n-butyrates
Abe, Takashi,Fukaya, Haruhiko,Hayashi, Eiji,Hayakawa, Yoshio,Nishida, Masakazu,Baba, Hajime
, p. 193 - 202 (2007/10/02)
Several methyl esters of 3-dialkylamino-substituted n- and isobutyric acids have been subjected to electrochemical fluorination to give the corresponding perfluoroacid fluorides.Dimethyl, diethyl, pyrrolidino, morpholino, piperidino and N-methylpiperazino groups were investigated as dialkylamino substituents.The structure/yield relationship was evaluated both in terms of the structure of the acid and the kind of amino group, respectively.Better yields of perfluoroacid fluorides were obtained from methyl esters having isobutyric acid skeletons than those having n-butyric acid groups, and from the acids containing cyclic amino groups than those containing acyclic ones.