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Isolation and Crystal Structure Determination of 3,5,4′-Trihydroxy-6,7-Dimethoxy-Flavone (Eupalitin) from Asparagus falcatus (Linn.)

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Abstract

In this paper the title compound 3,5,4′-trihydroxy-6,7-dimethoxy-flavone (Eupalitin) has been isolated from Asparagus falcatus and characterized by UV, IR, NMR, mass spectra and X-ray single crystal diffraction. The 3,5,4′-trihydroxy-6,7-dimethoxy-flavone crystallizes in a monoclinic space group P21/n with a = 6.2527(2), b = 17.2821(6), c = 13.5476(5) Å, β = 100.274(2)° and Z = 4, β = 100.274(2)° and V = 1440.48(9) Å3. The crystal structure are stabilized by intra- and intermolecular O–H···O hydrogen bonds. Molecules pack into infinite zigzag-like layers with these hydrogen bonds.

Index Abstract

The title compound 3,5,4′-trihydroxy-6,7-dimethoxy-flavone (Eupalitin) has been isolated from Asparagus falcatus and characterized by UV, IR, NMR, mass spectra and X-ray single crystal diffraction.

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Acknowledgments

We would like to acknowledge Universiti Sains Malaysia (USM) for the University Grant 1001/PTEKIND/8140152. The authors also gratefully acknowledge the Academy of Finland (Project No 212588) and the University of Jyväskylä, as well as, the Ministry of Science and Technological Development of the Republic Serbia (Project No 14208) for financial support.

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Authors and Affiliations

  1. School of Industrial Technology, USM, 11800, Pinang, Malaysia

    Raza Murad Ghalib, Sayed Hasan Mehdi, Rokiah Hashim & Othman Sulaiman

  2. Nanoscience Center, Department of Chemistry, University of Jyväskylä, PO Box 35, 40014, Jyväskylä, Finland

    Arto Valkonen & Kari Rissanen

  3. Department of Chemistry, Faculty of Science, University of Kragujevac, 34000, Kragujevac, Serbia

    Srećko R. Trifunović

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  1. Raza Murad Ghalib
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  2. Sayed Hasan Mehdi
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  3. Rokiah Hashim
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  7. Srećko R. Trifunović
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Correspondence to Raza Murad Ghalib.

Additional information

Arto Valkonen, Kari Rissanen: X-ray crystallography.

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Ghalib, R.M., Mehdi, S.H., Hashim, R. et al. Isolation and Crystal Structure Determination of 3,5,4′-Trihydroxy-6,7-Dimethoxy-Flavone (Eupalitin) from Asparagus falcatus (Linn.). J Chem Crystallogr 40, 510–513 (2010). https://doi.org/10.1007/s10870-010-9687-9

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  • DOI: https://doi.org/10.1007/s10870-010-9687-9

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