Results 141 to 150 of about 804 (177)
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Journal of the Chemical Society, Perkin Transactions 1, 1973
[2′-14C]-7-Hydroxy-2′,4′,5′-trimethoxyisoflavone (2b) is shown to be excellently converted into [6-14C]-amorphigenin (1b) by Amorpha fruticosa seedlings, this being the first direct demonstration of the biosynthetic link between isoflavones and rotenoids.
Leslie Crombie +2 more
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[2′-14C]-7-Hydroxy-2′,4′,5′-trimethoxyisoflavone (2b) is shown to be excellently converted into [6-14C]-amorphigenin (1b) by Amorpha fruticosa seedlings, this being the first direct demonstration of the biosynthetic link between isoflavones and rotenoids.
Leslie Crombie +2 more
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Chemistry of the Natural Rotenoids
1963In many warm countries of the world the natives fish by throwing preparations of crushed plant material into ponds and streams. These preparations cause stupefaction of the fish, which rise to the surface and are collected. Plants which are frequently employed in South America, tropical Africa, the East Indies and Malaya belong to the Papilionatae sub ...
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Journal of the Chemical Society D: Chemical Communications, 1971
Insertion of the rotenoid ‘extra’ C-6 methylene occurs at the isoflavone (IIIa), rather than the isoflavanone (IVa), level of oxidation, in the biosynthesis of amorphigenin; earlier stages use chalcone (Va) with a free 4-hydroxy-group, but the biosynthetically acceptable isoflavone which emerges is not (VIa) but its methyl ether (VIb).
L. Crombie, P. M. Dewick, D. A. Whiting
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Insertion of the rotenoid ‘extra’ C-6 methylene occurs at the isoflavone (IIIa), rather than the isoflavanone (IVa), level of oxidation, in the biosynthesis of amorphigenin; earlier stages use chalcone (Va) with a free 4-hydroxy-group, but the biosynthetically acceptable isoflavone which emerges is not (VIa) but its methyl ether (VIb).
L. Crombie, P. M. Dewick, D. A. Whiting
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Rotenoids and Isoflavones fromSarcolobus globosus
Planta Medica, 2005Sarcolobus globosus is a medicinal plant growing in mangrove forests in Asia. No constituents from this plant have been reported previously. From the diethyl ether extract of S. globosus a new rotenoid sarcolobin and a new isoflavone sarcolobone, as well as the previously known rotenoids tephrosin, 12aalpha-hydroxydeguelin, 11-hydroxytephrosin, 12a ...
Helle, Wangensteen +4 more
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Rotenoid synthesis via radical cyclisation
Journal of the Chemical Society, Chemical Communications, 1988The (±)-6aα, 12aα, 12α-chromanochromanol acetate (11; R = Ac), representing the core structure of the insecticidal rotenoid alcohol (2), has been synthesised in six steps from the chromone (4); the cis,cis-stereochemistry is obtained in an intramolecular 6-exo aryl radical addition.
S. Asiah Ahmad-Junan, Donald A. Whiting
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Present Status of Rotenone and Rotenoids
Journal of Economic Entomology, 1941One of the most amazing developments in American agriculture during the past decade has been the rapid growth in the use of derris, cube, timbo, and barbasco as insecticides. These plants, all closely related botanically and belonging to the family Fabaceae, owe their toxicity to rotenone and a group of structurally related compounds called rotenoids.
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Rotenoid diversity, distribution and evolution in plant lineages
Natural Product ReportsThis highlight revisits rotenoid classification and provides a thorough understanding of how their occurrences could inform plant taxonomy.
Vaderament-A. Nchiozem-Ngnitedem +2 more
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Reaction of Rotenoids with Hydrazine
HETEROCYCLES, 1986Ivanka Kostova +4 more
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[Rotenoids from Derris trifoliata].
Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials, 2008Five rotenoids named dehydrodeguelin, dehydrorotenone, 12a-hydroxy rotenone, tephrosin and 12alphabeta-hydroxyrot-2'-enonic acid were isolated from aerial parts of Derris trifoliata. All these compounds were isolated from this plant for the first time.
Lu-Rong, Xu +3 more
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