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  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of organic chemistry 47 (1982), S. 1764-1766 
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1434-4475
    Keywords: Carbon-13 NMR ; Diazaphenanthrenes ; Steric shifts
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Sterisch bedingte Tieffeldverschiebungen infolge von δ-CH-Molekülteilen und δ-lone pairs von Stickstoffatomen sind in methylierten Diazaphenanthrenen ähnlich. Die gemessenen δ-Effekte dürften auf sterische Deformationen zurückzuführen sein, was als weiteres Indiz für den nahezu gleichgroßen Raumbedarf eines Wasserstoffatoms und eines freien Elektronenpaars am Stickstoff gewertet werden kann.
    Notes: Abstract Steric downfield shifts due to a δ-CH moiety and a δ-nitrogen lone pair are similar in methylated diazaphenanthrenes. Most probably steric distortions are responsible for the δ-effects observed, and this might be quoted as a further evidence for a nearly equal steric requirement of a hydrogen atom and a nitrogen lone pair.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1434-4475
    Keywords: Complexone ; Polyamines
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Lipophile Di-, Tri-, Tetra- und Hexamine wurden aus 2-Alkyl-1,3-Propandiolen und 2,2-Bis(Hydroxymethyl)-alkanolen dargestellt. Die Alkohole wurden in die Sulfonestern übergeführt, welche weiter durch Ethylendiamine oder Natriumazid substituiert wurden. Die Azide wurden direkt zu Aminen reduziert. Aus Di-oxyethylenierten 2-Oktadeka-1,3-propandiolen wurden entsprechende Amine gewonnen. Aus einigen Aminen wurden Salizylidenederivative dargestellt.
    Notes: Abstract Lipophilic di-, tri-, tetra-, and hexaamines were synthesized from 2-alkyl-1,3-propanediols and 2,2-bis(hydroxymethyl)alkanols. The alcohols were converted into the sulfonate esters which were substituted with ethylenediamine or sodium azide. The azides were directly reduced to give amines. Also dioxyethylenated 2-octadecyl-1,3-propanediol yielded the corresponding amine. Some amines were converted into the salicylidene derivatives.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1434-4475
    Keywords: 4,4′-Didodecyloxy-2,2′-bipyridine ; 4,4′-Dioctadecyloxy-2,2′-bipyridine ; Excitation profiles ; Iron(II) ; Resonance Raman spectra
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Es wurden die Resonanz-Raman-Spektren von Fe(LC 12)3Cl2 und Fe(LC 18)3Cl2 zusammen mit ihren Excitationsprofilen gemessen (LC 12 undLC 18 bedeutet 4,4′-Didodecyloxy-2,2′-bipyridin bzw. 4,4′-Dioctadecyloxy-2,2′-bipyridin). Dazu wurde ein Ar+-Laser benutzt. Die Banden im Bereich von 1 200–1 600cm−1, die den C-N- und C-C-Vibrationen zuzuordnen sind, zeigen die größten Resonanzverstärkungseffekte. Sowohl die Depolarisationsverhältnisse als auch die Excitationsprofile dokumentieren die Wechselwirkung in den resonierenden elektronischen Zuständen.
    Notes: Abstract The resonanceRaman spectra of Fe(LC 12)3Cl2 and Fe(LC 18)3Cl2 (whereLC 12 andLC 18 denote 4,4′-didodecyloxy-2,2′-bipyridine and 4,4′-dioctadecyloxy-2,2′-bipyridine, respectively) have been measured along with their excitation profiles. The exciting lines of an Ar+ laser have been used. The bands appearing in theRR spectra within 1 200–1 600cm−1 (expected to arise from thebipy moiety C-N and C-C vibrations) suffer the greatest resonance enhancements. Both depolarization ratios of theRaman bands and excitation profiles reveal the interaction of the resonant electronic states.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 324 (1982), S. 735-742 
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Komplexe der Dipicolinsäure und verwandter Verbindungen zur Oxidation organischer SubstrateDie Oxidation von methylierten Hydrochinonen zu Chinonen und von α,β-ungesättigten Alkoholen zu Aldehyden in Gegenwart verschiedener Oxidationsmittel wurde untersucht.Günstige Ergebnisse wurden bei der Anwendung des MnO2-Dipikolinsäure-Systems für d'e Oxidation von Allyl- und Benzylalkoholen und des AgO-Dipikolinsäure-Systems für die oxidative Demethylierung von methylierten Hydrochinonen erreicht.Der Einfluß der Struktur von 4-substituierten Dipicolinsäuren auf die katalytischen Eigenschaften wurde untersucht.
    Additional Material: 5 Tab.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 327 (1985), S. 963-967 
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The catalytic activity of sodium 1-dodecanesulfonate, sodium dodecyl sulfate, disodium 2-dodecyl-1, 3-propanediyl disulfate (1) and trisodium 2, 2-bis(sulfonatemethyl)tetradecylsulfate (2) was tested in the two-phase oxidation of p-xylene with cerium ammonium nitrate (CAN). Also various toluene derivatives were oxidized with CAN in the presence of sodium dodecyl sulfate. The observed reaction enhancements are discussed in terms of the micelle-substrate interaction. The catalytic oxidation of some toluene derivatives (3) with a subsequent thermal rearrangement of the oxidation product offers a simple synthetic route to benzaldehydes 4.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1990 (1990), S. 461-464 
    ISSN: 0170-2041
    Keywords: Antitumor agents ; Oxaziridines ; Aldimines, unsaturated ; Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A convenient method for the synthesis of previously unknown oxaziridines having unsaturated substituents at the 3-position (3a-k) is based on the selective oxidation of the imino group of α,β-unsaturated aldimines 2 with m-chloroperbenzoic acid. The title compounds and 2-tert-butyl-3-(phenylethynyl)oxaziridine (3k) exhibit potent activity against experimental tumor cells in vitro.
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
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