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  • 1990-1994  (2)
  • 1,3,5-Triaza-2,4-diphospha-1,4-Pentadienes, dynamic behavior  (1)
  • 1,3-Diaza-2λ2-phosphonia-4λ4-gallatacyclobutanes  (1)
  • lithium compounds
  • phosphorus compounds
  • 1
    Electronic Resource
    Electronic Resource
    1,3-Diaza-2λ2-phosphonia-4λ4-gallatacyclobutane (1994)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 127 (1994), S. 2397-2401 
    Details
    ISSN: 0009-2940
    Keywords: [Amino(imino)phosphane]gallium trichloride adduct ; 1,3-Diaza-2λ2-phosphonia-4λ4-gallatacyclobutanes ; Nickel tricarbonyl complexes ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1,3-Diaza-2λ2-phosphonia-4λ4-gallatacyclobutanesReaction of amino(imino)phosphanes 1a-c with gallium trichloride results in the formation of 1,3-diaza-2λ2-phosphonia-4λ4-gallatacyclobutanes 3a, b with elimination of chlorotrimethylsilane (1a) or tert-butyl chloride (1b, c). The intermediately formed amino(imino)phosphane/Lewis acid adducts R(Me3Si)NPN(GaCl3)R′ (2, R,R′ = tBu, Me3Si) can be isolated in the case of compound 2a (R = R′ = SiMe3). A diazaphosphasilacyclobutane - gallium trichloride adduct 4 is formed in a side reaction by isomerization of 2a. Reaction of compound 3b with Ni(CO)4 gives the corresponding transition metal complex 5. The NMR data and X-ray structures of compounds 2a, 4, and 5 are reported.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19941271210
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Synthese, Struktur und dynamisches Verhalten von 1,3,5-Triaza-2,4-diphospha-1,4-pentadienenVorgetragen auf der XIth International Conference on Phosphorus Chemistry, Tallinn, USSR, July 1989. (1990)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 123 (1990), S. 797-799 
    Details
    ISSN: 0009-2940
    Keywords: 1,3,5-Triaza-2,4-diphospha-1,4-Pentadienes, dynamic behavior ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Synthesis, Molecular Structure, and Dynamic Behaviour of 1,3,5-Triaza-2,4-diphospha-1,4-pentadienesChloro(arylimino)phosphane (1) reacts with the 1,3-diaza-2-phosphaallylic system 3 to form 1,3,5-triaza-2,4-diphospha-1,4-pentadienes Ar-N=P-N(R)-P=N-Ar (Ar = 2,4,6-tBu3-C6H2; R = tBu, 2,4,6-iPrc3C6H2) (4a-c). the molecular structure of 4a (“Exo-endo-S conformation”) as well as the dynamic behaviour of the compounds in solution are discussed. the observed temperature dependance of the NMR spectra of 4c was interpreted as a sigmatropic 1,3-rearrangement followed by a P-N rotation.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19901230425
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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