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  • 1
    Electronic Resource
    Electronic Resource
    Cyclopropanol derivatives as intermediates for organochemical synthesis (1970)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 92 (1970), S. 7428-7436 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00728a029
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    2,2′-Diphenyl-Δ3,3′-bi-3H-indole-1,1′-dioxide: Competitive demethylation and redox reactions (1988)
    Springer
    Monatshefte für Chemie 119 (1988), S. 1311-1316 
    Details
    ISSN: 1434-4475
    Keywords: 2,2′-Diphenyl-Δ3,3′-bi-3H-indole-1,1′-dioxide ; Demethylation ; Oxidation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Es wird über kompetitive Demethylierungen und Redoxreaktionen an stickstoffhaltigen Verbindungen (Pyridine, Amide, Indole, Hydrazone und Amine) berichtet, die durch das Dinitron 2,2′-Diphenyl-3,3′-bi-3H-indol-1,1′-dioxid induziert werden.
    Notes: Abstract Competitive demethylation and redox reactions induced by 2,2′-diphenyl-Δ3,3′-bi-3H-indole-1,1′-dioxide,1 (dinitrone) on several nitrogen bearing compounds (pyridines, amides, indoles, hydrazones and amines) are reported.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00808311
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    p-(tricyanovinylidene)phenylhydrazones. Nucleophilic attack on carbon-carbon double bonds (1988)
    Springer
    Monatshefte für Chemie 119 (1988), S. 1375-1384 
    Details
    ISSN: 1434-4475
    Keywords: Hydrazones ; Nucleophilic substitution reactions ; Kinetics of substitution reactions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Es wird die Substitution einer —CH-Gruppe inp-(Tricyanovinyliden)phenylhydrazonen mit Aminen geprüft. Die Reaktionsgeschwindigkeit wird von der Polarität des Lösungsmittels bestimmt; die berechneten Geschwindigkeitskoeffizienten zweiter Ordnungk ber 2 . (Substitution der —CN-Gruppe) nehmen mit der Aminkonzentration zu. Es wird die Röntgenstrukturanalyse eines Adduktes beschrieben.
    Notes: Abstract The dispacement of a —CN group inp-(tricyanovinylidene)-phenylhydrazones, induced by amines, is investigated. The rate of the reaction is dependent on the polarity of the solvent and the observed second-order rate coefficientsk obs 2 for the —CN displacement increase with the amine concentration. A X-ray analysis of one of the substituted compounds is also reported.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00810281
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  • 4
    Electronic Resource
    Electronic Resource
    2,2′-Diphenyl-Δ3,3′-bi-3H-indole-1,1′-dioxide: Molecular interactions and crystal structure (1988)
    Springer
    Monatshefte für Chemie 119 (1988), S. 487-494 
    Details
    ISSN: 1434-4475
    Keywords: Charge transfer complexes ; Molekular associations ; 2,2′-Diphenyl-Δ3,3′-bi-3H-indole-1,1′-dioxide
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Das Dinitron 2,2′-Diphenyl-Δ3,3′-bi-3H-indol-1,1′-dioxid wirkt als Demethylierungs- und Oxydationsmittel. Die Wechselwirkung des Dinitrons mit Elektronen-Acceptoren und Elektronen-Donatoren geht wegen der Selbstassoziation zwischen den Dinitron-Molekülen ohne die dazwischenliegende Bildung eines Charge-Transfer-Komplexes vor sich; das wird auch von Röntgenstrukturuntersuchungen gestützt. Die Kristallstruktur wurde mit direkten Methoden ermittelt:a=9.967 (2),b=19.817 (3),c=10.875 (2) Å; β=111.2 (2)°. P21/n. Die endgültigen WerteR undR w waren 0.089 und 0.063 für alle gemessenen Reflexe.
    Notes: Abstract The Dinitrone 2,2′-diphenyl-Δ3,3′-bi-3H-indole-1,1′-dioxide acts as a demethylating and dehydrogenating agent. The mechanism of interaction of the dinitrone with donors and acceptors does not involve intermediate charge-transfer complexes probably due to a self association between dinitrone molecules (as supported by X-ray determinations). The crystal structure of the dinitrone was obtained by direct methods;a=9.967 (2),b=19.817 (3),c=10.875 (2) Å, β=111.2 (2)°, space group P21/n. The finalR andR w were 0.089 and 0.063 for all measured reflexes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00810429
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  • 5
    Electronic Resource
    Electronic Resource
    FT-IR determinations in charge-transfer interactions between phenylhydrazones and organic acceptors (1988)
    Springer
    Microchimica acta 95 (1988), S. 373-374 
    Details
    ISSN: 1436-5073
    Keywords: hydrazones ; charge-transfer complexes ; 1,1,2,2-ethenetetracarbonitrile ; 1,2-dicarbonitrile-4,5-dichloro-3,6-dioxo-1,4-cyclohexadiene ; infrared spectra
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Unhindered phenylhydrazones form charge-transfer complexes with organic acceptors like tetracyanoethylene and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone. FT-IR determinations on starting hydrazones allow to predict the possibility of suitable molecular associations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01349791
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  • 6
    Electronic Resource
    Electronic Resource
    Interactions of indole derivatives with organic acceptors. III (1987)
    Springer
    Monatshefte für Chemie 118 (1987), S. 369-379 
    Details
    ISSN: 1434-4475
    Keywords: Charge-transfer complexes ; 1,1,2,2-Ethenetetracarbonitrile ; Molecular associations
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Es werden die Wechselwirkungen von 1-Hydroxy-2-phenylindol und 2,2′-Diphenyl-Δ3,3′-bi-3H-indol mit organischen Akzeptoren geprüft. Je nach den Eigenschaften des Akzeptors und des Donors kann die Reaktion molekulare Komplexe, Redox-Produkte oder andere Addukte ergeben. Die Reaktion von 1-Hydroxy-2-phenylindol mit Tetracyanoethylen bildet 1-Oxy-2-phenyl-3-(dicyanomethylidene)indol, dessen Kristallstruktur beschrieben wird.
    Notes: Abstract Interactions of 1-hydroxy-2-phenylindole and 2,2′-diphenyl-Δ3,3′-bi-3H-indole with common organic acceptors are analyzed. Depending on the nature of donor-acceptor partners, the reaction may afford molecular complexes, redox products or some kind of adduct. The reaction of 1-hydroxy-2-phenylindole with tetracyanoethylene leads to the formation of 1-oxy-2-phenyl-3-(dicyanomethylidene) indole whose crystal structure is reported.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00809948
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