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Structural Elucidation of Isomeric Pyronoflavones by 2D-NOESY

Publication Type : Journal Article

Thematic Areas : Biotech

Publisher : Spect. Letts

Source : Spect. Letts, Volume 24, p.471 (1991)

Campus : Amritapuri

School : School of Biotechnology

Center : Biotechnology, Phytochemistry Labs

Department : biotechnology

Year : 1991

Abstract : Unequivocal assignments of the uncoupled protons at H-3 and H-6/H-8 of pyranoflavones by 2D-NOESY experiments have made it possible to distinguish linear and angular isomers. This study also suggests that the linear structure (carpachromene, 1) assigned to a pyranoflavone isolated from Atalantia ceylanica should be revised to angular form (atalantoflavone, 4). 2D-NOESY is also useful for differentiating 3′ 4′-and 2′ 4′-disubstituted B-ring flavones.

Cite this Research Publication : A. Banerji and Luthria, D. L., “Structural Elucidation of Isomeric Pyronoflavones by 2D-NOESY”, Spect. Letts, vol. 24, p. 471, 1991.

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