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Assignment of Methoxyl Resonances and Observation of Restricted Rotation of B-Ring of 2′-Methoxy Flavones by 2D-Noesy in Conjunction with Asis

Publication Type : Journal Article

Thematic Areas : Biotech

Publisher : Taylor & Francis

Source : Spectroscopy letters, Taylor & Francis, Volume 24, Number 7-8, p.1047–1057 (1991)

Campus : Amritapuri

School : School of Biotechnology

Center : Biotechnology, Phytochemistry Labs

Department : biotechnology

Year : 1991

Abstract : 2D-NOESY in conjunction with aromatic solvent induced shifts (ASIS) allowed unequivocal assignments of methoxyl resonances in polymethoxylated pyranoflavones thus providing an additional aid for the structural elucidation of natural products. In addition, the unusual nOe interactions observed in 2′-substituted B-ring flavones with H-3 or H-4 ″of the pyran ring suggested hindered rotation of the B-ring.

Cite this Research Publication : A. Banerji and Luthria, D. L., “Assignment of Methoxyl Resonances and Observation of Restricted Rotation of B-Ring of 2′-Methoxy Flavones by 2D-Noesy in Conjunction with Asis”, Spectroscopy letters, vol. 24, pp. 1047–1057, 1991.

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