Results 151 to 160 of about 722 (194)

Chemistry of the Natural Rotenoids

1963
In 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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Rotenoids from Amorpha canescens

Transactions of the Kansas Academy of Science (1903-), 1979
recovered no rotenoids. Elution (6-8 column volumes) with 1:3 EtOAc/hexane recovered all rotenoid materials. The solvent was evaporated and the residue analyzed by TLC (Delfel, 1966) and HPLC (Moring, 1977). Direct comparison with standards suggested the presence of rotenone, degulin, tephrosin, and rotenolone. Peaks with retention volumes of rotenone,
Stephen E. Moring, James D. McChesney
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Biosynthesis of the rotenoid amorphigenin in germinating Amorpha fruticosa seeds: the pre-rotenoid (isoflavonoid) stages

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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Rotenoids and Isoflavones fromSarcolobus globosus

Planta Medica, 2005
Sarcolobus 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, Mahiuddin, Alamgir, Sultana, Rajia, Anne Berit, Samuelsen, Karl Egil, Malterud   +4 more
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Antiinflammatory activity of rotenoids from Clitoria fairchildiana

Phytotherapy Research, 2002
Five structurally related rotenoids were isolated from the roots of Clitoria fairchildiana. The antiinflammatory activity was investigated using a capillary permeability assay. The protective effect was measured as the inhibition in vascular permeability produced by acetic acid in the peritoneal cavity. The results suggest that for maximum activity the
Bernadete, Pereira da Silva, José, Paz Parente   +1 more
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Rotenoid synthesis via radical cyclisation

Journal of the Chemical Society, Chemical Communications, 1988
The (±)-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, 1941
One 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 Reports
This highlight revisits rotenoid classification and provides a thorough understanding of how their occurrences could inform plant taxonomy.
Vaderament-A. Nchiozem-Ngnitedem, Alan Paton, Gabin Thierry M. Bitchagno   +2 more
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[Rotenoids from Derris trifoliata].

Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials, 2008
Five 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, Shan, Li, Jun, Wu, Si, Zhang   +3 more
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Reaction of Rotenoids with Hydrazine

HETEROCYCLES, 1986
Ivanka Kostova, Nadejda Spassovska, Lilyana Maneva, Evgeni Golovinsky, Iliya Ognyanov   +4 more
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