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  • Chemistry  (14)
  • Wiley-Blackwell  (14)
  • 1995-1999  (3)
  • 1975-1979  (11)
  • 1
    Electronic Resource
    Electronic Resource
    Fluoridolyse von N-Phosphorylphosphazenen (1995)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 621 (1995), S. 865-870 
    Details
    ISSN: 0044-2313
    Keywords: Fluoridolysis ; N-Phosphoryl Phosphazenes ; Fluorophosphates ; Diazadiphosphetine ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Fluoridolysis of N-Phosphoryl PhosphazenesIn the reaction of the N-phosphoryl phosphazenes X3P=N—P(Y)X2 (X = Cl, PhO, Et2N, CF3CH2O, PrS, Ph; Y = O, S) (1-18) with Et3N · nHF (n ≍ 3 or 0.6) fluoro derivatives of N-phosphoryl phosphazenes (see table 2) as well as N-phosphorylated imiddotetrafluorophosphates, [F4P=N—P(Y)Cl2]- (Y = O, S), and imidopentafluorophosphates, [F5P—N—P(Y)X2]2- or [F5P—NH—P(O)X2]- (see table 3), are formed. t-BuNHPCl2=N—POCl2 reacts in acetonitrile with Et3N or i-Pr2EtN to form a product, representing probably the diazadiphosphetine (5 b).
    Notes: Bei der Umsetzung der N-Phosphorylphosphazene X3P=N—P(Y)X2 (X = Cl, PhO, Et2N, CF3CH2O, PrS, Ph; Y = O, S) (1-18) mit Et3N · nHF (n ≍ 3 oder 0,6) werden durch den Austausch von Chlor sowie PhO-, Et2N- und CF3CH2O-Gruppen gegen Fluor Fluorderivate von N-Phosphorylphosphazenen (siehe Tab. 2) sowie N-phosphorylierte Imiddotetra- und -pentafluorophosphate, [F4P=N—P(Y)Cl2]- (Y = O, S) und [F5P—N—P(Y)X2]2- bzw. [F5P—NH—P(O)X2]- (siehe Tab. 3) gebildet. t-BuNHPCl2=N—POCl2 reagiert in Acetonitril mit Et3N oder i-Pr2EtN zu einem Produkt, bei dem es sich höchstwahrscheinlich um das Diazadiphosphetin (5 b) handelt.
    Additional Material: 5 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19956210527
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  • 2
    Electronic Resource
    Electronic Resource
    Fluoridolyse von Cyclophosphazenen und linearen Polyphosphazenen (1995)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 621 (1995), S. 901-903 
    Details
    ISSN: 0044-2313
    Keywords: Fluoridolysis ; Cyclophosphazenes ; Polyphosphazenes ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Fluoridolysis of Cyclophosphazenes and Lineary PolyphosphazenesThe fluorination of nongeminal trans P3N3Cl4(NEt2)2 and nongeminal trans P3N3Cl3(NEt2)3 with the fluorination agent Et3N · 0,6 HF (B) occurs under retention of configuration yielding P3N3Cl2F2(NEt2)2 and P3N3F4(NEt2)2 or P3N3F3(NEt2)3, respectively. P3N3Cl6 is nearly quantitatively converted into P3N3F6. Poly(dichlorophosphazene) reacts to a poly(difluorophosphazene), (PNF2)n, distinguished by a moderate solubility in THF.
    Notes: Die Fluorierung von nichtgeminalem trans-P3N3Cl4(NEt2)2 und nichtgeminalem trans-P3N3Cl3(NEt2)3 mit dem Fluorierungsagens Et3N · 0,6 HF (B) verläuft unter Erhalt der Konfiguration zu P3N3Cl2F2(NEt2)2 und P3N3F4(NEt2)2 bzw. P3N3F3(NEt2)3. P3N3Cl6 wird nahezu vollständig in P3N3F6 überführt. Poly(dichlorphosphazen) reagiert zu einem THF-löslichen Poly(difluorphosphazen), (PNF2)n.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19956210532
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  • 3
    Electronic Resource
    Electronic Resource
    Fluoridolyse von Diphosphorylverbindungen (1995)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 621 (1995), S. 894-900 
    Details
    ISSN: 0044-2313
    Keywords: Fluoridolysis ; Imidodiphosphoryl Compounds ; Methanediphosphonic Acid Derivatives ; Azadiphosphetidine ; Pentafluorophosphates ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Fluoridolysis of Diphosphoryl CompoundsThe behaviour of diphosphoryl compounds [X2(O)P]2Y in fluoridolysis reactions is decisively determined by the nature of the bridging group Y. In the cases of Y = NH and CH2 and X = Cl [F2P(O)]2N- and [F2P(O)]2CH2 are obtained quantitatively. For Y = NPh, O, and CH2 the formation of phosphorylated pentafluorophosphates [F5P—Y—POX2]- is observed. Amido and ester derivatives containing fluorine (see table 2) are obtained from the corresponding chloro compounds by Cl/F exchange. Fluoridolysis of the azadiphosphetidine 19 results in the formation of acyclic 19 a.
    Notes: Das Fluoridolyseverhalten von Diphosphorylverbindungen [X2(O)P]2Y wird maßgeblich durch die Brückengruppe Y bestimmt. Im Falle von Y = NH und CH2 sowie X = Cl werden quantitativ [F2P(O)]2N- und [F2P(O)]2CH2 erhalten. Für Y = NPh, O und CH2 wird die Bildung von phosphorylierten Pentafluorophosphaten [F5P—Y—POX2]- beobachtet. Aus chlorhaltigen Amido- und Esterderivaten werden durch Chlor-Fluor-Austausch die entsprechenden Fluorderivate erhalten (siehe Tab. 2). Die Fluoridolyse des Azadiphosphetidins 19 ergibt die acyclische Verbindung 19 a.
    Additional Material: 5 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19956210531
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  • 4
    Electronic Resource
    Electronic Resource
    Untersuchungen zur Phosphorylierung von Imidodiphosphorsäurederivaten (1977)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 437 (1977), S. 275-281 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Investigations on the Phosphorylation of Imidodiphosphoryl DerivativesDerivatives of esters and octaalkylamides of imidodiphosphoric acid, {[X2P(O)]2N}Y (X = OR, NR2; Y = H, Na, SiMe3, MgBr), react with phosphorus(V) chlorides exclusively under formation of O-phosphorylated products. No derivatives of nitridotriphosphoric acid are formed. O-Diethoxyphosphorylated phosphazenes, X2P(O)—N=PX2-O—P(O)(OEt)2, are obtained by using diethoxyphosphoryl chloride, (EtO)2P(O)Cl. Octaalkylamides react with PCl5 to form tetrachlorophosphonium compounds containing the PCl4 group chelate-like surrounded by the octaalkyl imidodiphosphoryl tetramide anion. The product of the reaction of octaalkyl imidodiphosphoryl tetramide sodium and POCl3 seems to have an analogous constitutions.
    Notes: Derivate von Estern und Octaalkylamiden der Imidodiphosphorsäure, {[X2P(O)]2N}Y (X = OR, NR2; Y = H, Na, SiMe3, MgBr), reagieren mit Phosphor(V)-chloriden ausschließlich unter Bildung O-phosphorylierter Produkte. Es entstehen keine Derivate der Nitridotriphosphorsäure. Mit Diäthoxyphosphorylchlorid, (EtO)2P(O)Cl, bilden sich O-Diäthoxyphosphorylierte Phosphazene, X2P(O)—N=PX2-O—P(O)(OEt)2. Die Octaalkylamide reagieren mit PCl5 zu Tetrachlorophosphoniumverbindungen, in denen die PCl4-Gruppe vom Octaalkylimidodiphosphoryltetramid-Anion chelatartig umgeben ist (IV). Eine analoge Konstitution scheint das Reaktionsprodukt von Octaäthylimidodiphosphoryltetramid-Natrium mit POCl3 zu haben.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19774370140
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  • 5
    Electronic Resource
    Electronic Resource
    Untersuchungen zur Temperaturabhängigkeit der 31P-chemischen Verschiebung in Trialkoxyphosphazen-N-phosphoryldialkylesternProfessor Hans-Albert Lehmann zum 60. Geburtstage am 1. Mai 1979 gewidmet (1979)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 451 (1979), S. 5-11 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Temperature Dependence Investigations of 31P Chemical Shifts of Trialkoxyphosphazene N-phosphoryldialkylestersThe 31P NMR spectra of a series of trialkoxyphosphazene-N-phosphoryldialkylesters, (RO)3P=N—P(O)(OR′)2, where R = R′ = Et; R = Et, R′ = Bu; R = Bu, R′ = Et; R = R′ = Bu; and R = R = R′ = Hex respectively, and of trichlorophosphazene-N-phosphoryldichloride were investigated at various temperatures. The temperature dependence of chemical shift of phosphorus belonging to the phosphazene group is multiplicately larger than that of phosphorus belonging to the phosphoryl group. This fact also could be confirmed for other simple phosphazene and phosphoryl compounds. As discussed this different temperature dependence of 31P chemical shift is not a consequence of the medium but of the molecular structure.
    Notes: Für eine Reihe von Trialkoxyphosphazen-N-phosphoryldialkylestern, (PO)3P=N—P(O)(OR′)2, wobei R = R′ = Et; R = Et, R′ = Bu; R = Bu, R′ = Et; R = R′ = Bu bzw. R = R′ = Hex waren, sowie für Trichlorphosphazen-N-phosphoryldichlorid wurden jeweils 31P-NMR-Spektren bei verschiedenen Temperaturen aufgenommen. Es zeigte sich, daß die Temperaturabhängigkeit der chemischen Verschiebung für den Phosphor der Phosphazen-Gruppierung um ein mehrfaches größer ist als die für den Phosphor der Phosphoryl-Gruppierung. Dies konnte auch allgemein für andere einfache Phosphazen- und Phosphoryl-Verbindungen bestätigt werden. Es wird diskutiert. daß diese unterschiedliche Temperaturabhängigkeit der 31P-chemischen Verschiebung nicht auf Medieneinflüsse, sondern auf die molekulare Struktur zurückzuführen ist.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19794510102
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  • 6
    Electronic Resource
    Electronic Resource
    α-Substituierte Phosphonate. XXXI. Zur Reaktion von N,N,N′,N′-Tetramethylchlorformamidiniumchlorid mit P-III-Verbindungen (1978)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 320 (1978), S. 389-394 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: α-Substituted Phosphonates. XXXI. The Reaction of N,N,N′,N′-Tetramethyl Chloroformamidinium Chloride with P(III) CompoundsN,N,N′,N′-Tetramethyl chloroformamidiniumchloride (4) does not react with triethyl phosphite (TEP) or isopropyl diphenylphosphinate to give the expected bisphosphoryl derivatives 7 and 11, respectively, but primarily the monophosphorylated amidinium salts 6 and 10 respectively. The phosphine oxide 10 is stable, while 6 undergoes an elimination of ethyl chloride to the betain 8. Even under more drastic conditions the reaction of 4 or 8 with TEP does not lead to the expected bis(dimethylamino)bisphosphonate 7, but to the monoaminated bisphosphonate 1, involving a reduction step. Similar reduction has been observed under mild conditions in Michaelis-Arbusov reaction of dichloromethylenimonium chloride, yielding the expected trisphosphonate 2 and the bisphosphonate 1 as a by-product.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.19783200305
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  • 7
    Electronic Resource
    Electronic Resource
    Synthese und Eigenschaften linearer Phosphorylchlorphosphazene (1975)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 411 (1975), S. 148-152 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis and Properties of Lineary PhosphorylchlorphosphazenesThe phosphorylchlorphosphazenes, Cl2(O)P - [N=PCl2]n - Cl, (n = 1, 2, 3) react like POCl3 with hexamethyldisilazan forming silylamides, Cl2(O)P - [N = PCl2]n - NHSi(CH3)3, (n = 0, 1, 2, 3). From these are obtained the phosphorylchlorphosphazenes by reaction with PCl5 containing one group  - N = PCl2 more.
    Notes: Die Phosphorylchlorphosphazene, Cl2(O)P - [N=PCI2]n - Cl, (n = 1, 2, 3) reagieren ebenso wie POCl3 mit Hexamethyldisilazan zu den Silylamiden, Cl2(O)P - [N=PCl2]n - NHSi(CH3)3, (n = 0, 1, 2, 3), aus denen mit PCl5 die um eine Phosphazengruppe verlängerten Phosphorylchlorphosphazene erhalten werden.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19754110209
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  • 8
    Electronic Resource
    Electronic Resource
    Die Umsetzung von Harnstoff mit Phosphorpentachlorid (1977)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 435 (1977), S. 268-272 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The Reaction of Urea with Phosphorus PentachlorideUrea reacts with phosphorus pentachloride under formation of hydrogen chloride and (Cl3P=N)2CO. POCl3, Cl2P(O)NCO, Cl3P=NCN and other PNC compounds are formed as byproducts. The same products are obtained in the reaction of H2N—CO—NH—P(O)Cl2 or (Me3SiNH)2CO resp., with phosphorus pentachloride. Reaction conditions have been found in which the maximum portion of (Cl3P=N)2CO is obtained. On heating (Cl3P=N)2CO decomposes yielding POCl3 and the probably trimeric trichlorophosphazenecyan.
    Notes: Bei der Umsetzung von Harnstoff mit Phosphorpentachlorid entsteht unter Chlorwasserstoffentwicklung (Cl3P=N)2CO. Außerdem treten POCl3, Cl2P(O)NCO, Cl3P=NCN und weitere PNC-Verbindungen als Nebenprodukte auf. Die gleichen Produkte entstehen auch bei der Reaktion von H2N—CO—NH—P(O)Cl2 und (Me3SiNH)2CO mit Phosphorpentachlorid. Es gelang, solche Reaktionsbedingungen zu ermitteln, bei denen das Reaktionsprodukt einen maximalen Anteil von (Cl3P=N)2CO enthält. (Cl3P=N)2CO zersetzt sich beim Erhitzen unter Bildung von POCl3 und dem vermutlich trimeren Trichlorphosphazencyan.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19774350135
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  • 9
    Electronic Resource
    Electronic Resource
    Oligomere μ-Imidophosphorsäurechloride und -amide (1975)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 412 (1975), S. 246-250 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Oligomeric μ-Imidophosphoric Acid Chlorides and AmidesOligomeric μ-imidophosphoric acid chlorides. Cl2(O)P—[NH—P(O)Cl]n—Cl, (n = 1, 2, 3) are obtained by solvolysis of the linear phosphorylchlorphosphazenes, Cl2(O)P—[N=PCl2]n—Cl, with the stoichiometric amount of anhydrous formic acid. The chlorides react with ammonia forming the amides. The amides are characterized by paper and gel chromatography. Course and rate of hydrolysis of diimidotriphosphoric acid pentaamide depend on pH.
    Notes: Die oligomeren μ-Imidophosphorsäurechloride, Cl2(O)P—[NH—P(O)Cl]n—Cl, (n = 1, 2, 3) werden durch Solvolyse der linearen Phosphorylchlorphosphazene, Cl2(O)P—[N=PCl2]n—Cl, mit der stöchiometrischen Menge wasserfreier Ameisensäure erhalten. Mit Ammoniak reagieren die Chloride zu den entsprechenden Amiden. Die Charakterisierung der Amide erfolgte mittels Papier- und Gelchromatographie. Verlauf und Geschwindigkeit der Hydrolyse des Diimidotriphosphorsäurepentamids sind vom pH-Wert abhängig.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19754120308
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  • 10
    Electronic Resource
    Electronic Resource
    Zur „HCl-Kondensation“ von Phosphorsäureamiden (1975)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 415 (1975), S. 1-7 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On the „HCl- Condensation“ of Phosphorus OxytriamideThe reaction of HCl with phosphorus oxytriamide suspended in ether leads to highly cross-linked imidopolyphosphates. By substitution of amido group by chlorine atoms amidochlorides of phosphoric acid are also formed which are soluble in ether. Only traces of oligomeric μ-imidophosphoric acid amides are obtained. The intermediate formation of phosphorylimide amide, OP(=NH)NH2, and phosphoryl imide chloride, OP(=NH)CI, is assumed to explain the experimental results.
    Notes: Die Reaktion von HCl mit Phosphoroxidtrimid in ätherischer Suspension führt zur Bildung stark vernetzter Imidopolyphosphate. Durch Substitution von Amidgruppen durch Chloratome entstehen außerdem ätherlösliche Amidchloride der Phosphorsäure. Oligomere μ-Imidophosphorsäureamide werden nur in Spuren erhalten. Zur Interpretation der experimentellen Befunde wird die intermediäre Bildung von Phosphorylimidamid, OP(=NH)NH2, und Phosphorylimidchlorid, OP(=NH)CI, angenommen.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19754150102
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