The essential oil of the leaves of Eugenia uniflora L. (Myrtaceae) was investigated by GLC, NMR, and mass spectrometry. Main constituents are furanodiene (27a), and the hitherto unknown selina-1,3,7(1 1)-trien-8-one (36) and oxidoselina-1 ,3,7(1 1)-trien-8-one (41). The oil contains almost no monoterpenes, but several known sesquiterpenes. The characteristic odor of the oil is determined by the mushroom-like, woody, and spicy smelling furanodiene (27a), and by the green and cucumber note of selinatrienone (36).

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Monodor a tenuifolia (Benth.) W. Ash (Annonaceae) is a tree found in evergreen and transition forests along the west coast of Africa. The morphological parts of the plant are used in traditional medicine for the treatment of diseases

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