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  • 11
    ISSN: 1520-6041
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 12
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 116 (1994), S. 2191-2192 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 13
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 115 (1993), S. 6989-6990 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 14
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 115 (1993), S. 3314-3315 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 15
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 109 (1987), S. 2822-2823 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 16
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 104 (1971), S. 653-660 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The Preparation of Fluorocyclotriphosphazenes with Phosphazene Side ChainsFluorocyclotriphosphazenes with phosphazene side chains were prolonged by the alternating reactions of hexamethyldisilazane and phosphorus pentachloride (1-8). The compounds formed contain up to six alternating (PN) bonds. Reactions of heptamethyldisilazane and methylamine give 9 and 10. Substitution reactions with the higher ring compounds yield 11-14. The properties of these substances are described and their structures could be likely prooved on the basis of 31P and 19F n. m. r. investigations. The compounds are further characterized by analysis and i. r. spectra.
    Notes: Fluorcyclotriphosphazene mit Phosphazenseitenkette werden durch alternierende Reaktionen mit Hexamethyldisilazan und Phosphorpentachlorid verlängert (1-8). Dabei entstehen Verbindungen, die bis zu sechs alternierende (PN)-Bindungen enthalten (7, 8). Umsetzungen mit Heptamethyldisilazan und Methylamin ergeben 9 und 10. Substitutionen an höheren Ringverbindungen führen zu 11-14. Die Eigenschaften dieser Substanzen werden beschrieben und ihre Struktur durch 31P- und 19F-NMR-Untersuchungen wahrscheinlich gemacht. Die Verbindungen werden weiterhin durch Analysen und IR-Spektren charakterisiert.
    Type of Medium: Electronic Resource
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  • 17
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 104 (1971), S. 3729-3739 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: 2.4.4.6.6-Pentafluoro-1.3.5.2.4.6-triazaphosphor(V)inyl-(2)-amines and hydrazines („Pentafluorocyclotriphosphazo-amines and hydrazines“)P3N3F6 reacts with amines such as H2NC2H5, HN(C2H5)2, HN(n-C3H7)2, and HN(n-C4H9)2 as well as with hydrazines such as H2NNH2, H2NN(CH3)2 and H2NNHCH3 to give the corresponding monosubstituted products 4-11 of the type . With P3N3F5NHR (R=H, CH3, C2H5) and (C2H5)2NSi(CH3)3 one obtains the trimethylsilyl-substituted amines 12-15 1H, 19F, and 31P n.m.r., i.r. and mass spectra of the compounds 4-15 are reported. In addition i.r. and Raman spectra for 1-5 in the range of the valence-vibration of the P3N3F5N skeleton are given and assigned. The 31P n.m.r. data (δ31P and 2JPP) of 1-15 are briefly discussed.
    Notes: P3N3F6 reagiert mit Aminen wie H2NC2H5, HN(C2H5)2, HN(n-C3H7)2 und HN(n-C4H9)2 sowie Hydrazinen wie H2NNH2, H2NN(CH3)2 und H2NNHCH3 zu den entsprechenden Monosubstitutionsprodukten 4-11 vom Typ . Aus P3N3F5NHR (R=H, CH3, C2H5) und (C2H5)2NSi(CH3)3 lassen sich die trimethylsilyl-substituierten Amine 12-15 gewinnen. Die 1H-, 19F- und 31P-NMR- sowie die IR- und Massenspektren der Verbindungen 4-15 werden mitgeteilt. Ferner werden die IR- und Raman-Spektren von 1-5 im Bereich der Valenzschwingungen des P3N3F5N-Gerüstes angegeben und zugeordnet. Die 31P-NMR-Daten (δ31P und 2JPP) von 1-15 werden kurz diskutiert.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
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  • 18
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 115 (1982), S. 185-200 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis and Decomposition of λ3- and λ5-TetrazaphospholenesIminophosphanes 4a-c react with tert-butyl azide by [2+3]-cycloaddition to give λ3-tetrazaphospholenes 8a-c. These compounds decompose thermally or photochemically by N2-elimination, forming diiminophosphoranes 9a,b,b′,c by intramolecular oxidation of the phosphorus atom, where 9c can only be captured as its [2+2]-cycloaddition product 11c and 12c. The reaction of the diiminophosphoranes 7a, 9a, and 9c with tert-butyl or ethyl azide yields the λ5-tetrazaphospholenes 10a′, 10c-g. Compounds of this type (10i′, h) are also available by the reaction of 4b,c with ethyl azide. In contrast to the λ3-tetrazaphospholene system 8, the oxidized form 10 [2+3]-cycloreverses thermally as shown for 10a′, while photochemically forms the λ5-diazaphosphoridine 14 unter N2-elimination. The NMR data and the decomposition of the tetrazaphospholenes are discussed.
    Notes: Iminophosphane 4a-c regieren mit tert-Butylazid unter [2+3]-Cycloaddition zu λ3-Tetrazaphospholenen 8a-c. Diese zerfallen thermisch oder photochemisch unter N2-Eliminierung, wobei unter intramolekularer Oxidation des Phosphors die Diiminophosphorane 9a,b,b′,c gebildet werden. Hierbei ist 9c nur in Form seiner [2+2]-Cycloadditionsprodukte 11c und 12c faßbar. Die Reaktion der Diiminophosphorane 7a, 9a und 9c mit tert-Butyl- bzw. Ethylazid ergibt die λ5-Tetrazaphospholene 10a′, 10c-g. Verbindungen dieses Type (10i′, h) sind ebenfalls durch Umsetzung von 4b, c mit Ethylazid zugänglich. Im Gegensatz zum λ3-Tetrazaphospholen-System 8 verläuft der Zerfall der oxidierten Form 10, wie am Beispiel von 10a′ aufgezeigt wird, thermisch unter [2+3]-Cycloreversion, während photochemisch unter N2-Eliminierung die Bildung des λ5-Diazaphosphiridins 14 beobachtet wird. Die NMR-Daten und der Zerfall der Tetrazaphospholene werden diskutiert.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 19
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 103 (1970), S. 2864-2867 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: N-[2,4,4,6,6-Pentafluoro-1,3,5,2,4,6-triazaphosphor(V)inyl-(2)]sulphurimides („N-(Pentafluorcyclotriphosphazo)sulphurimides“)P3N3NH2 (1) reacts with sulfurhalogen Lewis acids such as SF4 and OSCl2 to give P3N3F5 NSF2 (2) and P3N3F5NSO (3). 3 reacts with Pcl5 producing P3N3NSCl2 (4) In the presence of catalytic amounts of pyridine and at 100°, SO2 is eliminated from 3 and P3N3F5NSN- P3N3F5 (5) is formed. The i.r., n. m. r. and mass spectra are reported.
    Notes: P3N3F5NH2 (1) reagiert mit Lewis-aciden Schwefelhalogeniden wie SF4 und OSCl2 zu P3N3SNF52 (2) und P3N3F5NSO (3). Mit PCl5 setzt sich 3 zu P3N3nF5NSCl2 (4) um. In Gegenwart katalytischer Mengen Pyridin erhält man aus 3 bei 100° unter SO2-Abspaltung P3N35NSNP3F5 (5). Die IR-, NMR- und Massenspektren werden mitgeteilt.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
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  • 20
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 118 (1985), S. 3227-3240 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: λ5-Di- and -Triazaphospholines - Synthesis, Isomerization, and DecompositionThe reaction of amino[(trimethylsilyl)methylene]thioxophosphorane 1 with diazoalkanes leads to Δ1-diazaphospholines 3, 7, 11, and 12. These sensitive compounds are stabilized by 1,3-migration of a trimethylsilyl group, where 3 and 7 end in the Δ2-diazaphospholines 4 and 8 and 11 and 12 decompose by [1 + 4]cycloreversion to give the azines 14 and 15 as well as aminothioxophosphane intermediate 13. 13 could be trapped by reaction with diazoalkanes as aminomethylenethioxophosphoranes (18 and 19). The corresponding phosphane system 20 and 21 is available by reduction of 18 and 19, respectively, with triphenylphosphane. tert-Butyl azide (22) and 1 form triazaphospholine 23, which isomerizes thermally by silyl migration to give 24. Photochemically induced elimination of N2 leads to the λ5-azaphosphiridine 25; this system is also accessible by reaction of aminoiminothioxophosphorane 26 with diazomethane. In contrast, thermal reaction of trimethylsilyl azide (30) and 1 results in a λ5-thiaphosphirane 31. Compounds of this type (31, 32) can also be synthesized by [1 + 2]cycloaddition of sulfur and the corresponding iminomethylenephosphorane. - The X-ray structure analysis of the Δ2-diazaphospholine 5 is described, NMR data and decomposition of di- and triazaphospholines are discussed.
    Notes: Amino[(trimethylsilyl)methylen]thioxophosphoran 1 reagiert mit Diazoalkanen zu den Δ1-Diazaphospholenen 3, 7, 11 und 12. Diese stabilisieren sich unter 1,3-Trimethylsilyl-Verschiebung zu den Δ2-Diazaphospholenen 4 und 8 bzw. zerfallen unter [1 + 4]-Cycloreversion zu Azin (14 und 15) und dem Aminothioxophosphan 13. 13 konnte durch Reaktion mit Diazoalkan als Aminomethylenthioxophosphoran (18 und 19) abgefangen werden. Durch Entschwefelung von 18 bzw. 19 mittels Triphenylphosphan ist das entsprechende Phosphan-System 20 bzw. 21 zugänglich. tert-Butylazid (22) reagiert mit 1 zum Triazaphospholen 23, das thermisch unter Trimethylsilyl-Wanderung zu 24 isomerisiert und photochemisch unter N2-Eliminierung das λ5-Phosphiridin 25 liefert, ein Verbindungssystem, das ebenfalls durch Umsetzung eines Aminoiminothioxophosphorans (26) mit Diazomethan zugänglich ist. Bei der thermischen Reaktion von 1 und Trimethylsilylazid (30) wird hingegen das λ5-Thiaphosphiran 31 erhalten. Verbindungen dieses Typs (31, 32) sind auch durch Schwefelung der entsprechenden Iminomethylenphosphorane zugänglich. - Die Röntgenstrukturanalyse des durch partielle Hydrolyse von 4 erhaltenen Δ2-Diazaphospholens 5 wird angegeben, und die NMR-Daten sowie der Zerfall der Di- und Triazaphospholene werden diskutiert.
    Additional Material: 5 Tab.
    Type of Medium: Electronic Resource
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