Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Bernard Muckensturm"'
Publikováno v:
Phytochemistry. 63:863-867
From the etheral extract of Rouya polygama Coincy seeds (Umbelliferae) six new germacranolides 1 – 6 were isolated. The structures were elucidated by chemical methods and spectroscopic analysis. Compounds 1 and 4 exhibited activity against Artemia
ChemInform Abstract: 7-Demethylplastochromenol-2 and 2-Demethylplastoquinone-3 from Seseli farreynii
Publikováno v:
ChemInform. 28
A new chromenol, 7-demethylplastochromenol-2, a known sesquiterpene-substituted quinone, seven monoterpenes and two sesquiterpenes were isolated from the leaves of Seseli farreynii. Their structures were established by spectroscopic methods and chemi
Publikováno v:
Phytochemistry. 45:549-550
A new chromenol, 7-demethylplastochromenol-2, a known sesquiterpene-substituted quinone, seven monoterpenes and two sesquiterpenes were isolated from the leaves of Seseli farreynii. Their structures were established by spectroscopic methods and chemi
Publikováno v:
Biochemical Systematics and Ecology. 23:875-876
Base catalysed cyclization of 1-(2′-hydroxy-phenyl)-2-ynones: A new pathway to the chromone skeleton
Publikováno v:
Tetrahedron Letters. 31:2299-2300
2-n-Butyl chromone is synthesized by an efficient new method starting from salicylaidehyde. The key step uses cyclisation of an aromatic hydroxy-ynone. Some sensitive intermediates need to be protected as methyithiomethyl-ethers.
Autor:
Bernard P. Riss, Bernard Muckensturm, Pierre C. Robert, Jean-Claude Kienlen, Marie-Thérèse Simonis
Publikováno v:
Biochemical Systematics and Ecology. 14:123-127
Twenty-two diversely substituted butadiynes have been tested for their insect antifeeding activity against Mythimna unipuncta, Spodoptera littoralis and Leptinotarsa decemlineata . The results in form of PA 50 (50% feeding of reference test) were sub
Autor:
Bernard P. Riss, Bernard Muckensturm
Publikováno v:
Tetrahedron. 45:2591-2604
Resume La bisabolangelone est un antiappetant sesquiterpenoide, considere comme une molecule “tete de serie” pour la recherche en synthese orientee dans le domaine phytosanitaire. Nous presentons dans cet article la synthese totale de cette subst
Autor:
Bernard P. Riss, Pierre Blaisinger, Bernard Muckensturm, Yves Bouchery, Pierre-Charles Robert, Marie-Thérèse Simonis, Dominique Pflieger, Jean-Claude Kienlen
Publikováno v:
Agronomie 3 (7), 167-174. (1987)
Agronomie
Agronomie, EDP Sciences, 1987, 7 (3), pp.167-174
Agronomie
Agronomie, EDP Sciences, 1987, 7 (3), pp.167-174
La bisabolangélone, extraite des graines d’Angelica silvestris L., est un puissant antiappétant contre différents insectes oligophages. Des chenilles de Mythimna unipuncta ont été élevées sur des feuilles de maïs traitées avec des solution
Autor:
Bernard Muckensturm, Pierre C. Robert, Dominique Pflieger, Jean-Claude Kienlen, Marie-Thérèse Simonis
Publikováno v:
Tetrahedron Letters. 28:1519-1522
9-hydroxy-dihydrofuro-2,3b-tetrahydropyran is synthesised as a model substance for azadirachtin. The key step utilizes cyclisation of hydroxy-dialdehyde precursors, followed by acetylation and pyrolysis.
Autor:
Bernard Muckensturm, Danielle Duplay, Marie T. Simonis, Jean-Claude Kienlen, Pierre C. Robert
Publikováno v:
Biochemical Systematics and Ecology. 9:289-292
Eleven furocoumarins from Angelica silvestris and Heracleum sphondylium were tested for their antifeedant activity gainst two insect larvae: Mythimna unipuncta and the Colorado beetle Leptinotarsa decemlineata . Angular furocoumarins show a smaller e