425-87-6Relevant articles and documents
RADICAL REDUCTION OF C-Cl BONDS IN CHLOROFLUORO ETHERS
Liska, Frantisek,Fikar, Jiri,Kuzmic, Petr
, p. 565 - 574 (1993)
Reduction of C-Cl bonds in 2,2-dichloro-1,1,2-trifluoroethyl trichloromethyl ether (I), 2-chloro-1,1,2-trifluoroethyl trichloromethyl ether (II), and 2,2-dichloro-1,1,2-trifluoroethyl dichloromethyl ether (III) with 2-propanol, 2-butanol, cyclohexanol, tetrahydrofuran, diethyl ether, and 1,3-dioxolane initiated photochemically and by radiation has been investigated.Beside the main reduction products - 2-chloro-1,1,2-trifluoroethyl dichloromethyl ether (IV) and 2-chloro-1,1,2-trifluoroethyl chloromethyl ether (V) - it was also possible to prove the formation of 1,2-dichloro-1,2-bis(2-chloro-1,1,2-trifluoroethoxyethane) (VI), 1-chloro-1,2-bis(2-chloro-1,1,2-trifluoroethoxy)ethene (VII), and 1,2-dichloro-1,2-bis(2-chloro-1,1,2-trifluoroethoxy)ethene (VIII).The structure of products was confirmed by elemental analysis, MS, IR, 1H NMR and 19F NMR spectra and by GLC comparison of the elution times with those of the standards.The relative reduction ability of the solvents used and the reduction rate order of C-Cl bonds in the compounds (CCl3 > CFCl2 > CHCl2 and CFClH) are given.
A Facile Synthesis of Fluorochlorobromoacetic Acid
Doyle, Thomas R.,Vogl, Otto
, p. 31 - 43 (2007/10/02)
Fluorochlorobromoacetic acid was synthesized in the sequence of four steps from 1,1,2-trifluoro-2-chloroethylene in an overall yield of approximately 25percent. 1,1,2-Trifluoro-2-chloroethylene was first allowed to react with sodium methoxide to form 1,2-difluoro-1-chloro-2-methoxyethylene, which was then brominated with elemental bromine and the reaction product treated with concentrated sulfuric acid to give methyl fluorochlorobromoacetate.This compound was hydrolized with a diluted sodium hydroxide solution to fluorochlorobromoacetic acid.