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Digitale Medien

Technique for injecting intact glands for analysis of sex pheromones of Lepidoptera by capillary gas chromatography (1987)

Attygalle, A. B. ; Herrig, M. ; Vostrowsky, O. ; [weitere]

Springer

Journal of chemical ecology 13 (1987), S. 1299-1311

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ISSN: 1573-1561

Schlagwort(e): Solid-sample injection ; sex pheromone analysis ; Ostrinia nubilalis ; Bombyx mori ; Mamestra brassicae ; Lepidoptera ; Pyralidae ; Bombycidae ; Noctuidae ; site of pheromone release

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie , Chemie und Pharmazie

Notizen: Abstract The structure elucidation of sex pheromones of Lepidoptera by a solid-sample injection technique in conjunction with capillary gas chromatography is described. The applicability of this method in GC and GC-MS modes was demonstrated by reanalyzing the sex attractants of females ofOstrinia nubilalis andBombyx mori. The pheromone complex ofMamestra brassicae was reinvestigated and (Z)-9-hexadecenyl acetate and (Z)-11-hexadecenol were found in addition to already known pheromone components of this species. By using the solid-sample injection, the exact site of pheromone release could be determined inM. brassicae.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF01020556

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Digitale Medien

Identification of sex pheromone components ofSpodoptera sunia Guenée (Lepidoptera: Noctuidae) (1988)

Bestmann, H. J. ; Attygalle, A. B. ; Schwarz, J. ; [weitere]

Springer

Journal of chemical ecology 14 (1988), S. 683-690

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ISSN: 1573-1561

Schlagwort(e): Sex pheromone analysis ; Spodoptera sunia ; solid sample injection ; Lepidoptera ; Noctuidae

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie , Chemie und Pharmazie

Notizen: Abstract Moths belonging to the speciesSpodoptera sunia have been recognized as a new pest of cotton in Central America. By means of electro-physiologic investigations, solid sample injection gas chromatography, and combined gas chromatography-mass spectrometry, (Z)-9-tetradecenyl acetate, (9Z,12E)-9,12-tetradecadienyl acetate, (Z)-9-tetradecen-1-ol, and (Z)-11-hexadecenyl acetate, in a ratio of 100∶5∶31∶20, were identified in the pheromone gland of female insects. These substances should serve as a base for the development of a pheromone-monitoring system for this lepidopteran pest.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF01013915

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Digitale Medien

New Reactions of Alkylidenephosphoranes and their Preparative Uses. Part I: The Acid-Base Character of Phosphonium Salts and AlkylidenephosphoranesParts II and III will appear shortly in this journal. (1965)

Bestmann, H. J.

Weinheim : Wiley-Blackwell

Angewandte Chemie International Edition in English 4 (1965), S. 583-587

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ISSN: 0570-0833

Schlagwort(e): Alkylidenephosphoranes ; Phosphonium salts ; Synthetic methods ; Phosphoranes ; Ylides ; Alkenes ; Chemistry ; General Chemistry

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie

Notizen: Phosphonium salts may be regarded as Bronsted acids, and alkylidenephosphoranes as the conjugate bases. Compounds of the two classes exist in equilibrium with each other. Phosphonium salts and alkylidenephosphoranes can be obtained by this “transylidation”. Other methods are also given for the preparation of members of both classes.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/anie.196505831

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Digitale Medien

New Reactions of Alkylidenephosphoranes and their Preparative Uses. Part II. Alkylidenephosphoranes and Halogen CompoundsFor Part I see Angew. Chem. 77,609 (1965), Angew. Chem. internat. Edit. 4, 583 (1965). Part III will appear shortly in this journal. (1965)

Bestmann, H. J.

Weinheim : Wiley-Blackwell

Angewandte Chemie International Edition in English 4 (1965), S. 645-660

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ISSN: 0570-0833

Schlagwort(e): Alkylidenephosphoranes ; Phosphonium salts ; Synthetic methods ; Phosphoranes ; Ylides ; Alkenes ; Chemistry ; General Chemistry

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie

Notizen: The reaction of alkylidenephosphoranes with compounds containing halogens can be used to prepare ylides, which can be converted in to useful products, e.g. by hydrolysis, by thermal decomposition, or by other reactions. Examples of such products are ketones including cyclic, unsaturated, and branched-chain ketones (including cyclic, unsaturated, and branched-chain ketones), carboxlic esters (including those of unsaturated, branched- chain, polyenecarboxylic, acetylenecarboxylic, and allenecarboxylic acids), and aldehydes.

Zusätzliches Material: 10 Tab.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/anie.196506451

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Digitale Medien

New Reactions of Alkylidenephosphoranes and their Preparative Uses IIIFor Part I, see Angew. Chem. 77, 609 (1965) Angew. Chem. internat. Edit. 4, 583 (1965); for Part II, see Angew. Chem. 77, 651 (1965); Angew. Chem. internat. Edit. 4, 645 (1965).. Alkylidenephosphoranes and Reagents Containing Multiple Bonds (1965)

Bestmann, H. J.

Weinheim : Wiley-Blackwell

Angewandte Chemie International Edition in English 4 (1965), S. 830-838

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ISSN: 0570-0833

Schlagwort(e): Alkylidenephosphoranes ; Phosphonium salts ; Synthetic methods ; Phosphoranes ; Ylides ; Alkenes ; Chemistry ; General Chemistry

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie

Notizen: A few examples of preparatively useful syntheses using alkylidenephosphoranes and substances containing a C—N or C—C double bond are the preparations of olefins, allenes, pyran derivatives, and cyclopropane derivatives. Olefins, ketones, and monocyclic compounds can be obtained by autoxidation of alkylidenephosphoranes; α, β-dioxo compounds (including cyclicones) can be prepared by oxidation with peroxy-acids. Alkylidenephosphoranes can also be used for the synthesis of azines and Schiff bases. Of the many possibilities offered by the Wittig reaction, only the preparation of tritiated aldehydes and olefins will be considered.

Zusätzliches Material: 1 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/anie.196508301

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