| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 28023 | Journal of Photochemistry and Photobiology A: Chemistry | 2008 | 5 Pages |
Abstract
The NMR technique has been applied to characterize the phototransformation products of the natural alkaloid lappaconitine. It was demonstrated that the photolysis of lappaconitine 1 results in cleavage of the ester bond with elimination of N-acetylanthranilic acid. The final reaction product was found to be an immonium salt 4 of N-acetylanthranilic acid and enamine 3. An equilibrium between the imine cation and the enamine 3 was detected.
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Authors
Nikolay E. Polyakov, Tatyana V. Leshina, Alexey V. Tkachev, Irina A. Nikitina, Natalia A. Pankrushina,