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  • Guest molecules  (1)
  • Pyridines, basicity of  (1)
  • onium compounds  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of inclusion phenomena and macrocyclic chemistry 1 (1983), S. 175-179 
    ISSN: 1573-1111
    Keywords: Inclusion ; clathrate ; clathrand ; host/guest ; X-ray analysis ; onium compounds ; azulene derivative
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The X-ray structure of the 1,4-butanediol clathrate ofN,N′-[1,3-azulenylenebis(methylene)]bis(trimethyl-ammonium)-diiodide is described, and the differences as well as the similarities to the 1-butanol inclusion of the same host are discussed in detail. The unit cell data of further clathrates of this new type are quoted.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of inclusion phenomena and macrocyclic chemistry 4 (1986), S. 135-146 
    ISSN: 1573-1111
    Keywords: Guest molecules ; host/guest chemistry ; host molecules ; inclusion (of molecules) ; large rings ; macrocyclic compounds ; receptor model
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The syntheses of the functionalized carbomacrocycles5–11 are reported. The diastereomeric diols10a, b form a stable methanol clathrate. The X-ray analysis of9 gives insight into the dimensions of the cavity. In the course of the preparation of4 the side products22 and23 have been characterized. Aldol condensations are also used for the syntheses of the 30-membered ring15 and of its hydrogenation product16. The diesters12–14 have been prepared to make available functionalized carbomacrocycles with high ring member numbers by acyloin condensation. In this connection, the 28-membered tetra-yne20 and its precursors18 and19 are described.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 122 (1989), S. 343-346 
    ISSN: 0009-2940
    Keywords: Pyridinophanes ; Pyridines, basicity of ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis, X-ray Structure, Basicity, and Dynamic Stereo-chemistry of a Donor-Substituted [2.2] (2,6)PyridinophaneTreatment of 4b with pheyllithium afforded the donor-substituted 7,15-dimethoxy[2.2](2,6)pyridonophane (2) by intermolecular cyclization. 2 is compared with the unsubstituted compound 1 by X-ray crystallography, determination of basicity, and 1H-NMR studies. The results indicate an attractive interaction between the pyridine nitrogen of 2 and a H atom of a second molecule of 2.
    Notes: Das durch Methoxygruppen Donor-verstärkte 7,15-Dimethoxy-[2.2](2,6)pyridinophan (2) wurde durch intermolekulare Cyclisierung von 4b mit Phenyllithium erhalten. Ein Vergleich mit dem unsubstituierten Grundgerüst 1 wird über die Röntgenkristallstrukturanalyse, Basizitätsmessungen sowie 1H-NMR-Studien vorgenommen. Die Ergebnisse deuten auf eine anziehende Wechselwirkung zwischen dem Pyridin-Stickstoff von 2 und einem H-Atom der Methoxygruppe eines zweiten Moleküls 2 hin.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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