cas 6162-21-6, Benzenesulfonamide, 4-(dimethylamino)- (9CI) | Articles data ｜lookchem

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6162-21-6

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EQUILIBRIUM NH ACIDITY OF POLYFLUOROALKYL-CONTAINIG COMPOUNDS
The pK vvalues of NH acids containing a polyfluoroaryl group at the α position to the acid center (polyfluoroalkyl- and diarylamines, polyfluoroanilines) with reference to 9-phenylfluorene were obtained by transmetallation in dimethyl sulfoxide (cation potassium).The acidifying effects of the C6F5, β-C10F7, and C5F4N (tetrafluoro-4-pyridyl) groups were evaluated.The acidity of the C6F5NHR compounds correlates satisfactorily with the parameters of the 19F NMR spectra of the N-anions or NH acids and with the ?* constants of the substituent R.In the series of compounds p-RC6F4NHC6F5 and p-RC6F4NH(O)C6H5 a correlation is observed between the pK values and the Hammett constants of the substituent R.In most cases the conduction of the effect of the substituent R in these series to the NH reaction center is analogous with that in the corresponding unfluorinated series.
Vlasov, V. M.,Terekhova, M. I.,Petrov, E. S.,Shatenshtein, A. I.,Yakobson, G. G.
p. 1807 - 1813
(2007/10/02)

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Chemical Properties

Melting Point: 209-211 °C
Boiling Point: 372.498 °C at 760 mmHg
Flash Point:179.081 °C
Density: 1.281 g/cm³
Solubility:DMSO (Slightly), Methanol (Slightly)
Storage Temp.:Sealed in dry,Room Temperature
Vapor Pressure: 8.45E-24mmHg at 25°C
Refractive Index: 1.664
PKA: 10.36±0.14(Predicted)
PSA: 71.78000
LogP: 2.18110

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