691-42-9Relevant academic research and scientific papers
Reaction of OH with CH3CH2F. The Extent of H Abstraction from the α and β Positions
Singleton, Donald L.,Paraskevopoulos, George,Irwin, Robert S.
, p. 2339 - 2343 (1980)
The mechanism of the reaction of OH radicals with C2H5F was determined from the yields of the reaction products.Hydroxyl radicals were generated in the gas phase by photolysis of H2O at 184.9 nm, and products were analyzed by gas chromathography and mass spectrometry.The reaction proceeds by abstraction of hydrogen primarily from the α position, and the major products were meso- and d,l-2,3-C4H8F2, 1,3-C4H8F2, 2-C4H9F, and H2.The minor products were 1,4-C4H8F2, 1-C4H9F, 1-and 2-C3H7F, C2H6, C2H4, C2H3F, and C2H2.It was found that kinetically hot H atoms formed in the photolysis of H2O abstract hydrogen to some extent at the β position of C2H5F in contrast to thermal H atoms which abstract exclusively at the α position.After correction for the effects of H atom reactions, it was estimated that 85+/-3percent of the abstraction by occurs at the α position of C2H5F.
REACTIONS OF HALOGENS FLUORIDES. VIII. SUBSTITUTIVE FLUORINATION OF BROMINE-CONTAINING ALKANES AND ESTERS WITH BROMINE TRIFLUORIDE
Chuvatkin, N. N.,Kartashov, A. V.,Morozova, T. V.,Boguslavskaya, L. S.
, p. 237 - 242 (2007/10/02)
The conditions were found for selective liquid-phase substitutive fluorination of bromine-substituted alkanes and esters with pure bromine trifluoride, in which all three fluorine atoms of the BrF3 molecule are used effectively in the fluorination.The exchange of bromine for fluorine in monobromohalogenoalkanes is nonstereospecific and is in a number of cases accompanied by skeletal rearrangements, hydride shifts, and migration of the halogen.A carbocationic mechanism of fluorination is discussed.
