Liriodenine

Reference work entry

CAS Registry Number: 475-75-2 Open image in new window

Taxonomy: Physicochemical and Pharmacological Properties of Alkaloids – Isoquinoline Alkaloids – Aporphine Alkaloids

Biological sources: Liriodendron tulipiferum, Magnolia soulangeana, M. grandiflora, M. kobus, Roemeria refracta

C17H9NO3: 275.0582

Mp: 271–273°C (CHCl3) [1], 280–282°C (yellowish-green needles) [2]

UV: 247, 269, 302(4.23, 4.16, 3.70) [1]

UV(cyclohexane): 244(4.57), 259(4.50), 261(4.48), 268(4.13), 278(3.60), 335(4.10), 377(4.10), 398(4.16), 475(2.90) [2]

UV(conc. H2SO4): 243(4.49), 249(4.48), 275(4.35), 290(4.28), 412(4.28), 503(4.27), 568(3.72), 608(sh)(3.65) [2]

UV(H+): 256, 280, 334(4.33, 4.25, 3.70) [3]

IR: 1650, 1042, 953, 613 [4]

MSm/z: 275(M+, 100), 247, 246, 219, 217, 189, 188, 162 [5]

MS: 276(24), 275(M+, 100), 248(5), 247(18), 246(10), 222(m*) [2]

1H NMR(CF3COOH): 6.22(2H, s, CH2O2), 7.11(1H, s, H-3), 7.35–8.78(6H, m, H–Ar) [1]

1H NMR(CDCl3): 8.94(H-5), 8.63(H-11), 8.63(H-8), 7.77(H-4), 7.64(H-10),...

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