Prunetin

Reference work entry

CAS Registry Number: 552-59-0 Open image in new window

Taxonomy: Physicochemical and Pharmacological Properties of Flavonoids – Isoflavonoids

Biological sources: Glycyrrhiza glabra [1], Gl.pallidiflora [2]

C16H12O5: 284.2423

Mp: 241–243°C

UV: 263, 325 (4.16, 3.75), +NaOAc: 262, 330 sh, +NaOAc + H3BO3: 262, 332 sh; +AlCl3: 273, 309 sh, 374; +AlCl3 + HCl: 279, 310 sh, 370; +NaOMe: 272, 353 sh. [2]

IR: 3400, 2970–3120, 1682, 1628–1588, 1530, 1455 [2]

EI-MS: 284 (M+), 167 [2]

1H NMR (Py-d5): 3.48 (s, 3H, OCH3), 6.27,6.19 (each 1H, d, J = 2; H-8,6), 6.91 (2H, d, J = 8.5, H-3′,5′), 7.37 (2H, d, J = 8.8, H-2′,6′), 7.79 (1H, s, H-2), 11.46–13.20 (1H, s, 5-OH),)[2]

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References

  1. 1.
    T.Sh. Kattaev, G.K. Nikonov, Chem. Nat. Comp. 10, 94 (1974)CrossRefGoogle Scholar
  2. 2.
    T. Fukai, Q.H. Wang, R. Inami, T. Nomura, Heterocycles 31, 643 (1990)CrossRefGoogle Scholar

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© Springer Science+Business Media New York 2013

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