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Journal of Analytical Chemistry

, Volume 61, Issue 2, pp 133–138 | Cite as

High-performance liquid chromatography of 5,7-dinitrobenzofurazan and nitrobenzodifurazan derivatives of aromatic amines

  • M. I. Evgen’ev
  • I. I. Evgen’eva
  • F. S. Levinson
  • E. A. Ermolaeva
  • Ya. R. Valitova
Articles

Abstract

The retention times of 5,7-dinitrobenzofurazan and nitrobenzodifurazan derivatives of aromatic amines in reversed-phase high-performance liquid chromatography on a column filled with Hypersil ODS correlate with the acidity constants of these derivatives in dimethyl sulfoxide (DMSO) and dimethylformamide (DMF) and with the σ constants of substituents in the aromatic nucleus. Procedures were developed for the determination of aniline, N-methylaniline, N,N-dimethylaniline, and N-ethylaniline as their 5,7-dinitrobenzofurazan and nitrobenzodifurazan derivatives with detection limits of 70 μg/mL. The procedures can be used for the analysis of reaction mixtures in the synthesis of these substituted amines.

Keywords

DMSO Liquid Chromatography Detection Limit Retention Time Acidity 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Pleiades Publishing, Inc. 2006

Authors and Affiliations

  • M. I. Evgen’ev
    • 1
  • I. I. Evgen’eva
    • 1
  • F. S. Levinson
    • 1
  • E. A. Ermolaeva
    • 1
  • Ya. R. Valitova
    • 1
  1. 1.Kazan State Technological UniversityKazanRussia

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