1842-05-3Relevant academic research and scientific papers
The chlorination of 1,2-difluoroethane (HFC-152)
Nappa, Mario J.,Sievert, Allen C.
, p. 111 - 118 (1993)
The photochlorination of CH2FCH2F yields CH2FCCl2F and CHClFCHClF, both of which were considered to be potential replacements for CFC-113 (CCl2FCF2Cl) based on their boiling points (48 deg C and 59 deg C, respectively).The CHClFCHClF/CH2FCCl2F ratio can be controlled by the choice of solvents.In aromatic solvents, the reactivity of the chlorine radical is reduced, increasing the amount of CH2FCCl2F produced.Relative rates in CCl4 and in the presence of water were compared to rates in aromatic solvents.Both CH2FCCl2F and CHClFCHClF failed in early toxicity tests and will thus not be pursued as HCFC replacements for CFC-113.
REACTIONS OF HALOGEN FLUORIDES XII. REACTION OF BROMINE TRIFLUORIDE WITH BROMINE-CONTAINING ESTERS. A NEW METHOD FOR THE SYNTHESIS OF FLUOROALKYL 2-FLUOROACRYLATES
Kartashov, A. V.,Chuvatkin, N. N.,Boguslavskaya, L. S.
, p. 2243 - 2248 (2007/10/02)
Being weak Lewis bases, esters reduce the reactivity of bromine trifluoride in the substitutive fluorination of organic bromine derivatives.For this reason the rate of the reaction of bromine trifluoride with bromine-containing esters depends not only on the electronic characteristics of the substituents at the reaction center but also on the basicity of the ester.As a rule, the selectivity of the reaction increases with increase in the basicity of the ester.The reaction of bromine trifluoride or chlorine monofluoride with fluoroalkyl 2,3-dibromopropionates can be used successfully for the synthesis of monomers (fluoroalkyl 2-fluoroacrylates).
