377-36-6Relevant academic research and scientific papers
PRODUCTION METHOD OF PERFLUOROALKADIENE COMPOUND
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Paragraph 0046; 0056-0058, (2021/01/15)
PROBLEM TO BE SOLVED: To provide a method capable of obtaining a perfluoroalkandiene compound in a high yield while reducing the generation amount of impurities which are difficult to separate. SOLUTION: The production method is a method for producing a perfluoroalkandiene compound represented by the general formula (1): CF2=CF-(CF2)n-4-CF=CF2 (1) [in the formula, n represents an integer of 4 to 20.] and comprises a reaction step of reacting a compound represented by the general formula (2): CF2X1-CFX2-(CF2)n-4-CF2-CF2X3 (2) [in the formula, n is the same as defined above; X1, X2 and X3 are the same or different, X1 and X2 represent a halogen atom, and X3 represents a chlorine atom, a bromine atom or an iodine atom, provided that both X1 and X2 are not fluorine atoms] in the presence of a nitrogen-containing compound and zinc or a zinc alloy in an organic solvent in which the reaction step includes a mixing step of sequentially mixing a solution including zinc or a zinc alloy and an organic solvent, a nitrogen-containing compound and the compound represented by the general formula (2). SELECTED DRAWING: None COPYRIGHT: (C)2021,JPOandINPIT
Method of preparing perfluoroalkadiene
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Page/Page column 3, (2009/04/24)
Disclosed herein is a method of preparing a perfluoroalkadiene. A dihaloperfluorocarbon used as a starting material is added dropwise to a nonpolar organic solvent, a metal powder and an organic metal compound. The dihaloperfluorocarbon is slowly added dropwise in a temperature range from 30° C. to 150° C. for a certain period of time. Moreover, the nonpolar organic solvent used may be benzene, toluene, xylene, etc., and the organic metal compound is used by being dissolved in ethyl ether or tetrahydrofuran at a concentration of 1 to 3M. The metal powder used may be Mg, Zn, Cd, etc.
Electrocarboxylation of α,ω-dihaloperfluoroalkanes and of perfluoroalkylhalides in a near-critical and supercritical CO2-methanol medium
Mazin,Mysov,Sterlin,Grinberg
, p. 29 - 35 (2007/10/03)
The electrocatalytical carboxylations of some perfluoroalkylhalides and α,ω-dihaloperfluoroalkanes on copper and stainless steel electrodes in near-and supercritical CO2-methanol mixtures have been investigated. The main products and intermediates were determined. It was shown that the differences in the composition of products in these two cases indicate quite different catalytic activities of copper and stainless steel electrodes with regard to the electroreduction reactions of the intermediates and quite different adsorptions of these intermediates on the surfaces of the electrodes.
SYNTHESIS AND REACTIONS OF OXYGEN CONTAINING ORGANOFLUORINE COMPOUNDS. IX. REACTION OF POLYFLUOROALKYL KETONES WITH AMMONIA
Saloutina, L. V.,Zapevalov, A. Ya.,Kolenko, I. P.
, p. 2019 - 2024 (2007/10/02)
The reaction of polyfluoroalkyl ketones with ammonia at reduced temperature was studied.The products from addition of ammonia at the carbonyl group, i.e., geminal amino alkohols, were obtained.If there are chlorine and bromine atoms at the α position, the polyfluoroalkyl ketones dissociate under the influence of ammonia to carboxamides and polyhalogenoalkanes.
