107052-26-6Relevant articles and documents
Biological Activity of Marmesin and Demethylsuberosin against a Generalist Herbivore, Spodoptera exigua (Lepidoptera: Noctuidae)
Trumble, John T.,Millar, Jocelyn G.
, p. 2859 - 2864 (1996)
No significant effects were observed in bioassays designed to measure impact of the furanocoumarin precursors demethylsuberosin and marmesin on typical physiological parameters (survival and development rate) of the generalist herbivore, Spodoptera exigua (Huebner). The linear furanocoumarin psoralen did increase developmental times and reduce survival. All of these compounds were demonstrated to have significant behavioral (feeding deterrence) effects against both first and third instars of S. exigua in diet-incorporation bioassays. In tests initiated with first instars, significantly (P 0.05) more larvae preferred control diet to diet containing marmesin or psoralen on all five sample dates; control diets were significantly preferred to diets with demethylsuberosin on three of five sample dates. Similar results were observed for tests initiated with third instar larvae, but the avoidance of demethylsuberosin-containing diets was stronger. Therefore, assaying furanocoumarin precursors just for effects on growth and survival may not provide an accurate picture of the ecological importance of these compounds.
Tandem Thermal Claisen-Cope Rearrangements of Coumarate Derivatives. Total Syntheses of the Naturally Occuring Coumarins: Suberosin, Demethylsuberosin, Ostrithin, Balsamiferone and Gravelliferone
Cairns, Nicholas,Harwood, Laurence M.,Astles, David P.
, p. 3101 - 3108 (2007/10/02)
Thermal Claisen rearrangements of derivatives of 4'-O-methyl and 4'-O-benzyl methyl coumarates 3, prepared from the corresponding umbelliferone derivatives, have been investigated.Simple allyl derivatives rearrange predominantly to the vacant ortho-positi
