Summary
The isolation and structural elucidation ofΔ 9(15)-africanene from the soft coralSinularia erecta is presented.
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Literatur
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1H-NMR (270 MHz, CDCC3): δ 0.28 dd (J=4.1; 4.4 Hz, H-3 β), 0.55 dddd (J=4.4; 8.2; 6.0; 6.5 Hz, H-4), 0.64 dd (J=4.1; 8.2 Hz, H-3 α), ∼0.91 s (CH3-14), 1.01 s (CH3-12 and 13), 0.9 ddd (J=2.2; 15; 6 Hz, H-5 α), 1.07 dd (J=13.6; 11 Hz, H-7 α), 1.56 ddd (J=11.5; 11.5; 6.5 Hz, H-1), ∼2.5 ddd (J=13.6, 3.7; 2.2 Hz, H-7 β) and 2.4 m (H-8, 10 α and 10 β).13C-NMR (22.63 MHz CDCl3, tentative assignments): 221 s (C-9), 49.8 d and 48.1 d (C-1 and 8), 45.8 t (C-7), 43.4 t (C-5), 38.9 t (C-10), 33.4 q (C-14), 33.2 s (C-6), 23.5 t (C-11), 23.5 q and 20.5 q (C-12 and 13), 22.0 t (C-3), 23.5 d (C-4), and 18.8 s (C-2).
The same compound has been isolated by Braekman et al., fromSinularia polydactyla. Experientia36, 893 (1980).
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Kashman, Y., Bodner, M., Finer-Moore, J.S. et al. Δ9(15)-Africanene, a new sesquiterpene hydrocarbon from the soft coralSinularia erecta. Experientia 36, 891–892 (1980). https://doi.org/10.1007/BF01953775
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DOI: https://doi.org/10.1007/BF01953775