D. Clark, J. Emsley, F. Hibbert
1988
Citations
0
Influential Citations
5
Citations
Journal
Journal of The Chemical Society-perkin Transactions 1
Abstract
N.m.r. analysis of solutions of 1,1,1-trifluoropropan-2-one (TFP) and 1,1,1-trifluoropentane-2,4-dione (TFPD) in the strong acid system HBr–CBr2F2 shows the formation of the 2-bromo alcohol analogues of TFP and TFPD at temperatures below 250 K. In the latter system equilibrium constants for the formation of the bromo alcohol at various temperatures and acid ratios have been measured, from which the enthalpy of formation, ΔH°=–25.2 kJ mol–1, has been calculated. 1,1,1,5,5,5-Hexafluoropentane-2,4-dione (HFPD) does not react to form a bromo alcohol.