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Naphthalene—a constituent of Magnolia flowers

1996; Elsevier BV; Volume: 42; Issue: 4 Linguagem: Inglês

10.1016/0031-9422(96)00082-9

1873-3700

Hiroshi Azuma, Masao Toyota, Yoshinori Asakawa, Shoichi Kawano,

Biological Activity of Diterpenoids and Biflavonoids

Ether extracts of petals, gynoecia and leaves of nine Magnolia taxa were analysed using GC-mass spectrometry. The extracts of flowers and gynoecia of five taxa (M. denudata, M. liliiflora, M. tomentosa, M. p. var. praecocissima and var. borealis) contained naphthalene as their main component. The extracts of M. salicifolia characteristically contained several phenylpropanoids including eugenol methyl ether. Two well known sesquiterpene lactones, dehydrocostuslactone and porthenolide, were found in extracts of flowers and leaves of two taxa.