Pyrolytic Decarboxylation of Some Derivatives of Perfluorinated Mono- and Dicarboxylic Acids
作者:N. V. Lebedev、V. V. Berenblit、Yu. K. Starobin、V. A. Gubanov
DOI:10.1007/s11167-005-0577-4
日期:2005.10
Pathways of pyrolysis of perfluorinated carboxylic acids are considered in relation to the structure of the acids and reaction conditions. The reaction mechanism is discussed.
Halomethyl-metal compounds LXXVII. An organomercury route to tetrafluoroethylidene
作者:Dietmar Seyferth、Gerald J. Murphy、Robert A. Woodruff
DOI:10.1016/s0022-328x(00)91095-7
日期:1975.6
Phenyl(1-bromo-1,2,2,2-tetrafluoroethyl)mercury has been prepared by reaction of phenylmercuric chloride and 1-bromo-1,2,2,2-tetrafluoroethane with sodium methoxide in THF at -35°. This mercurial readily transferred CF3CF to carbenophiles at 155°. With olefins good yiels of gem-fluoro(trifluoromethyl) cyclopropanes were obtained and with triethylsilane Si insertion gave Et3SiCHFCF3. On reaction with
Theoretical and experimental studies for preparing 1, 1-dibromo-1,2,2,2-tetrafluoroethane on gas-phase bromination of 1,1,1,2-tetrafluoroethane
作者:Ruzhu Hu、Chengping Zhang、Feiyao Qing、Hengdao Quan
DOI:10.1016/j.jfluchem.2016.03.008
日期:2016.5
Efficient gas-phasebromination of 1, 1, 1, 2-tetrafluoroethane (HFC-134a) for the preparation of 1, 1-dibromo-1, 2, 2, 2-tetrafluoroethane (CF3CFBr2) has been described for the first time. A wide-ranging experimental investigation on the influence of some relevant process parameters was performed with the use of optimized parameters, resulting in the HFC-134a conversion yield and the selectivity to