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Lonchocarpus—A fish-poison insecticide
Economic Botany, 1947The roots of this tropical vine are the source of the valuable insecticide rotenone, non-toxic to humans, and were imported into the United States in 1946 from Brazil and Peru, from both wild and cultivated material, to the extent of more than 11 million pounds.
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Twenty-three flavonoids from Lonchocarpus subglaucescens
Phytochemistry, 1996Abstract Chemical investigation of Lonchocarpus subglaucescens roots resulted in the isolation of 23 flavonoids, whose structures were elucidated by spectroscopic methods. Ponganone III, ovalichromene B, purpurenone, 12α-hydroxyrotenone, (2,3- trans -3,4- trans )-3,4,5,8-tetramethoxy-[2″,3″:7,6]-furanoflavan, 6″,6″-dimethylchromeno- [2″,3″:7,8 ...
Aderbal F. Magalhães +3 more
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1935
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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Flavonoids from the stem bark of Lonchocarpus xuul
Phytochemistry, 2000The stem bark of Lonchocarpus xuul (Leguminosae) has yielded four flavonoids which have been identified by spectroscopic methods as the novel 4beta,5-dimethoxy-6",6"-dimethyl-2H-pyrano-(2",3":7,6)-fl avan (xuulanin), 3beta,4beta,5-trimethoxy-6",6"-dimethyl-2H-pyrano-(2",3":7,6 )-flavan (3beta-methoxyxuulanin).
R, Borges-Argáez +2 more
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Unusual flavonoids from Lonchocarpus orotinus seeds
Phytochemistry, 1987Abstract Seeds of Lonchocarpus orotinus have yielded five flavonoids the identities of which have been elucidated by spectroscopic analysis. In addition to the known minimiflorin three novel flavonoids, characterized by the presence of 2′,6′-dihydroxy substitution of the B-ring, were isolated and identified as orotinin (6′-hydroxyminimiflorin ...
Peter G. Waterman, El-Hadi N. Mahmoud
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Flavonoids from the seeds of Lonchocarpus costaricensis
Phytochemistry, 1985Abstract Seven flavonoids have been isolated from the seeds of Lonchocarpus costaricensis of which four appear to be novel. The new compounds have been identified as the β-hydroxychalcone demethylpraecansone-B and the flavanones 7-(3,3-dimethylallyloxy)-8-(3-hydroxy-3-methyl- trans -but-1-enyl)flavanone, 7-(3,3-dimethylallyloxy)-8-(3,3 ...
Peter G. Waterman, Elhadi N. Mahmoud
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2005
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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Natural Product Research, 2012
Proximate composition of the seeds and chemical analysis of the oils of Lonchocarpus sericeus and Lonchocarpus cyanescens were determined. The oil content of the seed of L. cyanescens is 29.71 ± 0.20% while that of L. sericeus is 28.00 ± 0.50%. The seeds as well as the oils of L. cyanescens and L.
Adewale, Adewuyi +3 more
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Proximate composition of the seeds and chemical analysis of the oils of Lonchocarpus sericeus and Lonchocarpus cyanescens were determined. The oil content of the seed of L. cyanescens is 29.71 ± 0.20% while that of L. sericeus is 28.00 ± 0.50%. The seeds as well as the oils of L. cyanescens and L.
Adewale, Adewuyi +3 more
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Dihydroflavonols and flavanones from Lonchocarpus atropurpureus roots
Phytochemistry, 1999Abstract From the petroleum extract of Lonchocarpus atropurpureus Benth. roots, 5,2′-dihydroxy-3-methoxy-6,7-(2″,2″-dimethylchromene)-8-(3″′,3″′-dimethylallyl)-flavanone and 2′,3,5-trihydroxy-6,7-(2″,2″-dimethylchromene)-8-(3″′,3″′-dimethylallyl)-flavanone were isolated, together with three known flavanoids and a mixture of two pentacyclic ...
Aderbal F. Magalhães +3 more
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