Russian Chemical Bulletin

, Volume 43, Issue 7, pp 1270–1272 | Cite as

Determination of the structure of 7-diethylamino-4-(1,2,3-triazol-1-yl)-2H-1-benzopyran-2-one derivatives using two-dimensional heteronuclear chemical-shift correlated NMR techniques

  • N. N. Sveshnikov
  • M. A. Kirpichenok
Brief Communications


1H and13C NMR spectra of 7-diethylamino-4-(1,2,3-triazol-1-yl)-2H-1-benzopyran-2-one derivatives have been studied. The location of the substituent in the 1,2,3-triazole ring was determined by the 2D COLOC method. It was established that the H(3) and H(5) protons in the coumarin moiety experience anisotropic influence of the phenyl subsituent at the C(5′) atom in the triazole ring.

Key words

7-diethylamino-4-(1,2,3-triazol-1-yl)-2H-1-benzopyran-2-ones 1H,13C NMR, two-dimensional NMR COLOC method 


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Copyright information

© Plenum Publishing Corporation 1995

Authors and Affiliations

  • N. N. Sveshnikov
    • 1
  • M. A. Kirpichenok
    • 2
  1. 1.Institute of Chemical Physics in ChernogolovkaRussian Academy of SciencesMoscow RegionRussian Federation
  2. 2.K. A. Timiryazev Moscow Agricultural AcademyMoscowRussian Federation

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