Results 131 to 140 of about 804 (177)

Effect of rotenoids from the seeds ofMillettia dura on larvae ofAedes aegypti

Pest Management Science, 2003
A crude chloroform extract of seeds of Millettia dura Dunn (Leguminosae) showed high activity (LC50 = 3.5 µg ml−1 at 24 h) against second-instar larvae of the mosquito, Aedes aegypti L (Diptera: Culicidae). The rotenoids, deguelin and tephrosin, isolated
Abiy Yenesew, Solomon Derese, Matthias Heydenreich   +2 more
exaly   +2 more sources

Some of the next articles are maybe not open access.

Related searches:

NMR investigations of rotenoids

Tetrahedron, 1973
Abstract Extensive NMR studies of major rotenoids have (1) verified the cis B/C ring fusion of rotenone; (2) confirmed the structure of the reduction-dehydration product of rotenone; (3) provided considerable evidence regarding the preferred conformations of rotenoids; (4) revealed an array of long-range couplings; and (5) pointed up analytically ...
D.G. Carlson, D. Weisleder, W.H. Tallent
openaire   +1 more source

Rotenoids

, 1967
openaire   +2 more sources

Rotenoids from roots of Clitoria Fairchildiana

Phytochemistry, 1998
A new rotenoid, named 9-demethylclitoriacetal, together with the known compounds, 11-deoxyclitoriacetal, 6-deoxyclitoriacetal, clitoriacetal and stemonal, was isolated from roots of Clitoria fairchildiana. Its structure was elucidated as 6a,12a-dihydro-6,9,11,12a-tetrahydroxy-2,3-dimethoxy-[1]benzopyrano[3,4-b] [1]benzopyran-12(6H)-one (1), on the ...
Bernadete P., Silva, Robson R., Bernardo, José P., Parente   +2 more
openaire   +2 more sources

Optical resolution of rotenoids

Journal of Heterocyclic Chemistry, 1987
AbstractOptical resolution of selected rotenoids containing 1‐3 asymmetric centers in dihydrobenzopyranofuroben‐zopyranone and dihydrobisbenzopyranopyranone series has been achieved on two chiral high‐performance liquid chromatographic (hplc) stationary phases.
openaire   +1 more source

Preparation of synthetic rotenoids

Experientia, 1975
Eine einfache Synthese von Rotenoiden durch Kondensation von 4-Ethoxycarbonyl-3-chromanonen mit Phenolen und katalytischer Hydrierung der entstehenden Dehydrorotenoide wird beschrieben.
R. Verhé, N. Schamp
openaire   +1 more source

Reactions of rotenoids with hydroxylamine

Liebigs Annalen der Chemie, 1988
AbstractReaction of rotenone (1a) and amorphigenin (2a) with hydroxylamine in alkaline medium affords a mixture of the isoximes 5 and 6, and the new 6a‐NH2 spiro derivatives 12a, b and 13a, b. The structures, stereochemistry, and the mechanisms of formation of these products are discussed.
openaire   +1 more source

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
openaire   +1 more source

Novel N-containing rotenoid and seco-rotenoid from the root of Derris elliptica

Journal of Asian Natural Products Research, 2009
Two new rotenoids, 2-hydroxy-5-aminorotenonone (1) and elliptoic acid (2), were isolated from the roots of Derris elliptica collected in Guangdong Province, China. Their structures were established by extensive spectral analysis. Compound 1 is the first N-containing rotenoid and compound 2 is the third rotenoid with the cleavage of C(12)-C(12a).
Hai-Ying, Lu, Jing-Yu, Liang
openaire   +2 more sources

Rotenoids from Boerhaavia repens

Phytochemistry, 1990
Abstract Two new rotenoid derivatives have been identified from Boerhaavia repens . The structures were elucidated by high field 1 H NMR techniques.
Maniruddin Ahmed, Bidyut Kanti Datta, Abu Shara Shamsur Rouf   +2 more
openaire   +1 more source