Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • 1990-1994  (5)
  • Isomerization  (2)
  • 1,3,5-Triaza-2,4-diphospha-1,4-Pentadienes, dynamic behavior  (1)
  • 1,3-Diaza-2-phosphaallyllithium  (1)
  • 1H-Tetraphospholes, 4,5-dihydro-  (1)
  • lithium compounds
  • 1
    Electronic Resource
    Electronic Resource
    Monomere und dimere 1,3-Diaza-2-phosphaallyllithium-Komplexe: Strukturen und ambidente ReaktivitätHerrn Professor Hans-Friedrich Grützmacher zum 60. Geburtstag gewidmet. (1992)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 125 (1992), S. 1119-1124 
    Details
    ISSN: 0009-2940
    Keywords: 1,3-Diaza-2-phosphaallyllithium ; Calculations, ab initio ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Monomer and Dimer 1,3-Diaza-2-phosphaallyllithium Complexes: Structures and Ambident Reactivity*Metallation of the NH-functional amino(imino)phosphanes Mes*NPNHR (R = CPh3, Ad, tBu) 1a-c yields the 1,3-diaza-2-phosphaallyllithium compounds 2a-c. The crystal structure shows an ether-stabilized monomer of 2a and a solvent-free dimer with an eight-membered ring in the case of 2b, c. The reaction of 2b with chlorodiphenylphosphane yields, dependent on the reaction conditions, (phosphanylamino)iminophosphane 3 or bis(imino)phosphanylphosphorane 4. The structural and reactivity is discussed on the basis of ab initio calculations.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19921250522
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 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
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Untersuchungen am System Phosphirenimin/Iminophosphan  -  Insertionsreaktionen und Isomerisierung (1994)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 127 (1994), S. 313-319 
    Details
    ISSN: 0009-2940
    Keywords: Phosphirene imines ; 1,2-Diphosphete diimines ; Isomerization ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Investigations of the System Phosphirene Imine/Iminophosphane - Insertion and Isomerization ReactionsTreatment of the iminophosphanes R1P=NR2 1 [R2 = tBu, R1 = Et3C (a); R2 = Aryl, R1 = Et (b), Me (c)] with 1,4-diphenyl-butadiyne (2) leads to the phosphirene imines R1-(R2N=)P̌(Ph)=CCCPh 3a-c and [R1(R2N=)P̌(Ph)=CC]2 4a-c. Further reaction with 1a, c gives the 1,2-diphosphetes R1(R2N=)PP(R1)(=NR2)C(Ph)=CCCPh 5a, b, which isomerize in the case of R1 = Me into the triphosphabicyclo[3.2.0]-hepta-1,6-diene 7. In the reaction of the phosphirene imines R1(ArylN=)P̌(R2)=C(R2) 3 [R1 = Me, R2 = Ph (d); R1 = Et, R2 = COOMe (e)] with the iminophosphanes 1b, d the initially formed diphosphetes 9a, b isomerize to the 1,2-diazaphosphole Cl(Mes*N=)PN(Mes*)P(Me)C(Ph)=C(Ph) 10 or the dioxadiphosphabicyclooctadiene C=C(OMe)OP(=N-Mes*)(Et)C=C(OMe)OP(=NMes*)(Et) 12 depending on the substituents. A reaction of the phosphirene imine 3d with dimethylamino-borane furnishes the vinylphosphane. Ph(H)C=C(Ph)P(Et)N(H)Mes* (14) by ring opening. The compounds 7, 10, 12 have been characterized by X-ray structure analyses.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19941270206
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Ein Weg zu neuartigen funktionalisierten Bis(imino)phosphoranen XP(= NAryl)=NAlkyl (1990)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 123 (1990), S. 2329-2333 
    Details
    ISSN: 0009-2940
    Keywords: 1H-Tetraphospholes, 4,5-dihydro- ; Bis(imino)phosphoranes ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A Route to Novel Functionalized Bis(imino)phosphoranes XP(=NAryl)=NAlkylChloro(arylimino)phosphane (1) reacts with alkyl azides RN3 (R = tBu, Et3C, 1-Ad) to form 4,5-dihydro-1H-tetrazaphos-pholes 2a-c. The thermal decomposition of these compounds results in the formation of the diazadiphosphetidines 4a-c via the chlorobis(imino)phosphorane intermediates 3a-c, which were detected by NMR spectroscopy. By treating 2a with the lithium salts Li(nBu, C5Me5, NHAryl, OAryl, tBuS) the 4,5-dihydro-1H-tetrazaphosphole intermediates 5a-d are obtained, which by elimination of nitrogen form the bis(imino)phosphoranes 6a-e. The X-ray structure determination of the phosphane derivative tBu2P—P(=NCEt3)= NAryl (7), obtained by the same procedure, is discussed.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19901231216
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    1,2-Dihydro-1,3,2λ5,4λ5-diazadiphosphet - Synthese, Struktur und Isomerisierung zum „inneren Salz“ von 1,3,2,4λ5-Diazadiphosphetan-2-iumhydroxid* (1992)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 125 (1992), S. 2631-2634 
    Details
    ISSN: 0009-2940
    Keywords: 1,2-Dihydro-1,3,2λ5,4λ5-diazadiphosphete ; Isomerization ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1,2-Dihydro-1,3,2λ5,4λ5-diazadiphosphete - Synthesis, Structure and Isomerization to the „Inner Salt“ of 1,3,2,4λ5-Diazadiphosphetan-2-ium HydroxideThe photochemical reaction of the azidophosphane (iPr2N)2PN3 (1) with the tetraazaphospholene (3) and the bis(imino)phosphorane (Me3Si)2NP(=NSiMe3)2 (6) proceeds by elimination of N2 to yield (5) and by 1,3-silyl group shift to furnish (8) the structures of which were determined by means of NMR data and, in the case of 5, additionally by X-ray structure analysis.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19921251202
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...