Reactions of tertiary perfluoroalkyl halides with halide anions
摘要:
The reactivities of the F-tert.-alkyl halides (CF3CF2CF2(CF3)2CX (1a-c: X = I, Br, Cl) towards the corresponding lithium halides LiY (2a-c: Y = I, Br, Cl), in acetonitrile, reflect the electron acceptor properties of compounds 1 and the donator strength of the anions Y-. The tertiary carbanion F-2-methylpentanide acts as the key intermediate in the formation of the main products (F-2-methyl-2-pentene, F-2-methyl-1-pentene and F-2-hydro-2-methylpentane), and also of the halide substitution products obtained from 1a. No support for the participation of any perfluoroalkyl radical could be found.
2,3-Dichlor-2-trifluormethyl-1,1,1,3,4,4,5,5,5-nonafluorpentan und Verfahren zu seiner Herstellung
申请人:HOECHST AKTIENGESELLSCHAFT
公开号:EP0037003A1
公开(公告)日:1981-10-07
Durch Chlorieren von Perfluor- (2-methyl-2-penten) mit elementarem Chlor in Gegenwart von energiereichem Licht entsteht die neue Verbindung 2,3-Dichlor-2-trifluormethyl-1,1,1,3,4,4,5,5,5-nonafluorpentan, die sich durch hohe thermische und chemische Stabilität auszeichnet.
Sud'enkov,Yu.Ya., Journal of Organic Chemistry USSR (English Translation), 1978, vol. 14, p. 1240 - 1241
作者:Sud'enkov,Yu.Ya.
DOI:——
日期:——
Development of technology of perfluoroethyl isopropyl ketone production
作者:I. M. Fenichev、Yu. I. Babenko、T. A. Bispen、D. D. Moldavskii
DOI:10.1134/s1070427213030154
日期:2013.3
Synthesis of perfluoroethyl isopropyl ketone by an interaction of hexafluoropropene with perfluoropropionic acid fluoride or hexafluoropropene oxide was examined. Interchangeability of perfluoropropionic acid fluoride and hexafluoropropene oxide was demonstrated. The features of perfluoroethyl isopropyl ketone synthesis were studied in polar aprotic solvents on catalysts: alkali metal fluoride. A method for obtaining perfluoroethyl isopropyl ketone by direct catalytic reaction in a tubular reactor without use of solvents was suggested and investigated. The mechanism of interaction was considered. The main impurities resulting in obtaining perfluoroethyl isopropyl ketone were determined. The methods of cleaning perfluoroethyl isopropyl ketone were worked out.
NAZARENKO, T. I.;DEEV, L. E.;PONOMARENKO, V. T.;PASHKEVICH, K. I., IZV. AN CCCP. CEP. XIM.,(1989) N2, S. 2869
作者:NAZARENKO, T. I.、DEEV, L. E.、PONOMARENKO, V. T.、PASHKEVICH, K. I.