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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

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Abstract

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.

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Authors and Affiliations

  1. Institute of Chemical Physics in Chernogolovka, Russian Academy of Sciences, Chernogolovka, 142432, Moscow Region, Russian Federation

    N. N. Sveshnikov

  2. K. A. Timiryazev Moscow Agricultural Academy, 127550, Moscow, Russian Federation

    M. A. Kirpichenok

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  1. N. N. Sveshnikov
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  2. M. A. Kirpichenok
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Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 7, pp. 1330–1332, July, 1994.

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Sveshnikov, N.N., Kirpichenok, M.A. 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. Russ Chem Bull 43, 1270–1272 (1994). https://doi.org/10.1007/BF00698258

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  • DOI: https://doi.org/10.1007/BF00698258

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