Zobrazeno 1 - 10
of 47
pro vyhledávání: '"George M. Strunz"'
Publikováno v:
Tetrahedron. 62:4153-4161
During the investigation of the reaction of dichloroketene with cyclic enoxy-lactones and acyclic enoxy-ester substrates it was found that only the acylic variants effectively participated in the [2+2]-cycloaddition. Although a complete understanding
Publikováno v:
Canadian Journal of Chemistry. 82:1686-1691
An asymmetric formal synthesis of the fungal metabolites ()-cryptosporiopsin and ()-3-deschloro crypto sporiopsin has been accomplished. The asymmetry was introduced via a diastereoselective [2+2]-cycloaddition between an enoxy-ester, bearing a b
Publikováno v:
Canadian Journal of Chemistry. 78:270-274
A metabolite of the coprophilous fungus, Sporormia affinis, 2-trans-allyl-5-chloro-1-hydroxy-4-oxo-2-cyclopentene-1-carboxylic acid methyl ester, 2, was synthesized in racemic form, by an eight-step sequence, in 11% overall yield. Departing from prev
Publikováno v:
Canadian Journal of Chemistry. 75:742-753
Sterpurene, a sesquiterpene hydrocarbon metabolite of Chondrostereumpurpureum, a plant pathogen and potential mycoherbicide, was synthesized by a six-step sequence, in 33% overall yield. The key steps were a thermal [4 + 2] (Diels–Alder) cycloaddit
Publikováno v:
Canadian Journal of Plant Pathology. 18:325-329
(1996). In vitro interactions between Cylindrocladium floridanum and species of Trichoderma. Canadian Journal of Plant Pathology: Vol. 18, No. 4, pp. 325-329.
Autor:
George M. Strunz, Heather J. Finlay
Publikováno v:
Canadian Journal of Chemistry. 74:419-432
The Sakai aryl aldehyde – cyclic ketone aldol – Grob fragmentation sequence was extended to cinnamaldehyde and cyclohexanone, and the product was elaborated to analogues of the alkaloid piperstachine. The effects of substituents on the reaction i
Publikováno v:
Canadian Journal of Chemistry. 73:1666-1674
The Baylis–Hillman reaction of acrylonitrile, methyl acrylate, and acrolein with several cyclic α-dicarbonyl compounds was investigated. Whereas acrylonitrile reacted with most of these ketones, giving good yields of the expected 1′-cyanovinyl c
Publikováno v:
Canadian Journal of Chemistry. 73:550-557
A quantitative structure–activity relationship study was performed for a number of aroylhydrazine compounds with respect to their biological activity against spruce budworm. It was found that the biological activity can be modulated by substituents
Publikováno v:
Canadian Journal of Chemistry. 72:2137-2143
Specionin (1) was synthesized in seven steps from aucubin (2), an abundant iridoid form aucuba japonica. In a "no-choice" bioassay, specionin and several of its derivatives showed only modest antifeedant activity against the spruce budworm, while oth
Autor:
Heather J. Finlay, George M. Strunz
Publikováno v:
Tetrahedron. 50:11113-11122
Pipercide and piperolein A, unsaturated amides from Piper nigrum, were prepared in overall yields of 21% and 35% respectively, by a new, short and efficient strategy, in which the key step was the aldol-Grob-type fragmentation sequence recently repor