Abstract:
:Cellulose triacetate was investigated as a chiral stationary phase for preparatively separating the enantiomers of lineatin, frontalin, exo-brevicomin, endo-brevicomin, verbenone, (E)-conophthorin, and grandisol. Tens of milligrams of both enantiomers were efficiently prepared in high percentage enantiomeric excess from one injection of each compound except grandisol. We prepared grandisyl acetate, benzoate, and 4-bromobenzoate to determine if derivatization of the free alcohol might improve separation. Of these, grandisyl 4-bromobenzoate provided the best separation but was still not very well resolved. Preparative separation of enantiomers on cellulose triacetate is a viable alternative to stereoselective synthesis when semiochemicals of very high enantiomeric purity are required for biological testing.
journal_name
J Chem Ecoljournal_title
Journal of chemical ecologyauthors
Keeling CI,Ngo HT,Benusic KD,Slessor KNdoi
10.1023/a:1010380704106keywords:
subject
Has Abstractpub_date
2001-03-01 00:00:00pages
487-97issue
3eissn
0098-0331issn
1573-1561journal_volume
27pub_type
杂志文章abstract::Information processing in the olfactory pathway underlying the perception of semiochemicals by insects is discussed. Both the chemical message for mates and the message for food consist of blends of chemicals. Olfactory receptors in an insect species are tuned to the detection of those compounds which comprise such ch...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF01014246
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abstract::Volatile organic compounds derived from non-host plants, Ocimum basilicum, Rosmarinus officinalis, Corymbia citriodora, and Ruta graveolens, can be used to mask host plant odors, and are repellent to the tea geometrid, Ectropis obliqua. Volatile compounds were collected by headspace absorption, and the components were...
journal_title:Journal of chemical ecology
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journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF00993222
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pub_type: 杂志文章
doi:10.1007/s10886-008-9467-6
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journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-007-9275-4
更新日期:2007-05-01 00:00:00
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journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF02033724
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doi:10.1007/s10886-005-5294-1
更新日期:2005-06-01 00:00:00
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journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF01012193
更新日期:1985-11-01 00:00:00
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pub_type: 杂志文章
doi:10.1007/s10886-007-9349-3
更新日期:2007-10-01 00:00:00
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journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF01013230
更新日期:1987-08-01 00:00:00
abstract::Understanding the coevolution of pathogens and their associated mycoflora depend upon a proper elucidation of the basis of their chemical communication. In the case of pine wilt disease, the mutual interactions between cerambycid beetles, invasive pathogenic nematodes, (Bursaphelenchus xylophilus) and their symbiotic ...
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pub_type: 杂志文章
doi:10.1007/s10886-018-0996-3
更新日期:2018-08-01 00:00:00
abstract::Feeding of theophylline to hornet workers from their moment of eclosion during the summer results in the following effects on the hornets: loss of appetite for proteins, inhibited ovarial development, no cell-building activity, negative phototaxis, gradual slow-down of spontaneous motor activity, difficulty in flight ...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF00984011
更新日期:1982-01-01 00:00:00
abstract::Toads of the genus Bufo synthesize and accumulate bufadienolides (BDs) in their parotoid glands. BDs are cardiotonic steroids that play an important role in defense against the toads' predators. Three bufonid taxa occur in mainland Japan, Bufo japonicus formosus, B. j. japonicus, and B. torrenticola. The chemical stru...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-020-01217-y
更新日期:2020-10-01 00:00:00
abstract::Soluble sugars are essential nutrients generally perceived as phagostimulants to most insects studied. However, tannins are known as digestibility reducers, hence deleterious to caterpillar development, and as deterrents as well. Previous work demonstrated that larvae of the polyphagous oblique-banded leafroller, Chor...
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pub_type: 杂志文章
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journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF00995747
更新日期:1981-03-01 00:00:00
abstract::The four major components of the setal exudate of nymphs of the andromeda lace bug,Stephanitis takeyai, were identified. They are 7-hydroxy-3-nonylchromanone1, the novel 3,5-dihydroxy-2-dodecanoylcyclohex-2-en-1-one2,2',6'-dihydroxydodecanophenone3, and its 3-hydroxy derivative4. Only three species ofStephanitis commo...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF01026934
更新日期:1990-07-01 00:00:00
abstract::Tachinid flies commonly use the pheromones and allomones of stink bugs (Pentatomidae) as host-finding kairomones. Pheromone-baited traps for predaceous (Podisus spp.) and phytophagous (Euschistus spp.) pentatomids were used to obtain tachinid parasitoids in order to study the semiochemical relationships between these ...
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abstract::Holcus lanatus, a temperate grass, was found to contain low but measurable concentrations of condensed tannins (CT), according to the vanillin-HCl and the butanol-HCl methods. The variation in CT concentrations between different types of tissue including leaf age and reproductive versus nonreproductive tissue was exam...
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abstract::Male olive fruit fly attraction to the four synthetic components of the female sex attractant pheromone was studied under laboratory and field conditions. In laboratory tests males responded to all four components tested separately. Component I, (1,7-dioxaspiro[5.5]undecane) was more attractive than any of the remaini...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
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abstract::Quinolizidine alkaloid contents of leaves and seeds ofLupinus argenteus (Fabaceae) collected from seven different localities near Gothic, Colorado were determined by capillary GLC. Differences in alkaloid levels between sites are substantial and alkaloid quantity decreases as elevation increases. Leaves at the lowest ...
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journal_title:Journal of chemical ecology
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更新日期:2002-05-01 00:00:00
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journal_title:Journal of chemical ecology
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pub_type: 杂志文章
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journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF00993691
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abstract::Female cowpea weevils,Callosobruchus maculatus, produce a sex pheromone that elicits orientation and sexual behavior in males. Bioassay-directed isolation of the sex pheromone was conducted and compounds in the active fraction were identified and synthesized. Volatiles were collected from individual virgin females by ...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF02029543
更新日期:1996-12-01 00:00:00
abstract::We focus this mini-review on how naturally occurring chemical cues mediate ecological interactions, especially interspecific competition and predation in freshwater communities. Although freshwater chemical ecology lags behind terrestrial and marine chemical ecology, we identify recent progress toward: (1) identifying...
journal_title:Journal of chemical ecology
pub_type: 杂志文章,评审
doi:10.1023/a:1020785525081
更新日期:2002-10-01 00:00:00