73482-93-6Relevant academic research and scientific papers
Enhancement of the Equilibrium Acidities of Carbon Acid by Polyfluoroaryl Substituents
Bordwell, F. G.,Branca, John C.,Bares, Joseph E.,Filler, Robert
, p. 780 - 782 (2007/10/02)
Acidity measurements in Me2SO solution have revealed that C6F5CH2CN is 5.9 pKa units more acidic than C6H5CH2CN due to the large field/ inductive effects of the five fluorine atoms.Smaller C6X5 substituent differences (ΔpKa) were obs
EQUILIBRIUM CH ACIDITY OF FLUORINE-CONTAINING FLUORENES IN 1,2-DIMETHOXYETHANE
Vlasov, V. M.,Yakobson, G. G.
, p. 194 - 203 (2007/10/02)
It was established that the effect of the fluorine atoms on the equilibrium CH acidity of polyfluorinated 9-phenylfluorenes during successive substitution of the phenyl group by a pentafluorophenyl group and of the condensed benzene rings by tetrafluorinated rings in 9-phenylfluorene is nonadditive in character.On the basis of the UV and 1H and 19F NMR spectra of the carbanions of the polyfluorinated 9-phenylfluorenes and also of the pK value of 9-fluorofluorene it was proposed that the nonadditive character in the increase of the equilibrium acidity of polyfluorinated 9-phenylfluorenes is due to the preponderance of the stabilizing polar effect of the fluorine atoms over their destabilizing ?-donor effect.
The Reduction of Fluorine-containing Triarylmethanols by Formic Acid
Andrews, Adrian F.,Mackie, Raymond K.,Walton, John C.
, p. 96 - 102 (2007/10/02)
Triarylmethanols containing one or more fluorine substituents in the para-positions are converted by 90 percent formic acid into a mixture of the fluorine-containing triarylmethane, and a second component in which one fluorine has been replaced by a hydro
