Regioselectivity of reductive debromination of substituted pentabromobenzenes with sodium tert-butoxide in DMSO
作者:V. N. Shishkin、I. V. Tarasova、K. P. Butin
DOI:10.1007/s11172-006-0126-1
日期:2005.10
The regioselectivity of reductive debromination of substituted pentabromobenzenes C6Br5X (X = NH2, OMe, Me, H, Cl, F, and NO2) under the action of ButONa in DMSO containing ButOH has been studied. The reaction followed the halophilic mechanism via carbanions.
Elgersma, Recueil des Travaux Chimiques des Pays-Bas, 1929, vol. 48, p. 766
作者:Elgersma
DOI:——
日期:——
Identification of bromination products of chloro-substituted anilines in aqueous environment by gas chromatography
作者:I. V. Gruzdev、M. V. Filippova、I. G. Zenkevich、B. M. Kondratenok
DOI:10.1134/s1070427211100132
日期:2011.10
To reduce the detection limits of aniline and its various chloroderivatives (all isomers of mono- and dichloroanilines, 2,4,5 -, 2,4,6-, and 3,4,5-trichloroanilines, pentachloroaniline) in aqueous media we suggested bromination reaction, followed by gas chromatographic definition bromo derivatives of chloroanilines on a selective electron capture detector. To identify the products of bromination of chloroaniline in combination with mass-spectrometric data we used chromatographic retention indices on standard nonpolar polydimethylsiloxane stationary phase that was determined for 50 compounds in this class. The technique of identifying bromoderivatives of chloroaniline in water was developed at the gas-chromatographic analysis in the selective electron capture detector. To improve the reliability of the identification of additional bromoderivatives of chloroanilines we obtained their trifluoroacetyl derivatives.
Effect of structural factors and solvent nature in bromination of anilines
作者:B. T. Bagmanov
DOI:10.1134/s1070427209090122
日期:2009.9
Reaction of electrophilic bromination of aniline containing various ortho, meta, and para substituents in the aromatic ring was studied. The optimal conditions for synthesis of mono-, di-, tri-, and tetrabromo derivatives of aniline and brominated analog of Aniline Black were found.
Oxidative bromination of aniline and its derivatives
作者:M. S. Salakhov、B. T. Bagmanov、V. S. Umaeva、M. I. Bagmanova
DOI:10.1134/s1070427208080314
日期:2008.8
Oxidative bromination of aniline and its derivatives containing various substituents (CH3, Cl, NO2, COOH) in ortho, meta, and para positions with a brominating mixture of NaBr (KBr) and 20-22% hydrogen peroxide in 6-8% hydrochloric acid at the molar ratio aniline : NaBr (KBr) : H2O2 : HCl = 1 : 3.5 : 3.2 : 4.5 is described.