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  • Wiley-Blackwell  (13)
  • 1975-1979  (11)
  • 1970-1974  (2)
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  • Wiley-Blackwell  (13)
  • Wiley  (12)
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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 405 (1974), S. 109-112 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reaction of Imidodiphosphoryl Tetrachloride with Phosphorus PentachlorideImidodiphosphoryl tetrachloride quantitatively reacts with PCl5 to form, HCl, POCl3, and Cl3P=N—POCl2. The mechanism of the reaction is discussed. Using 32P-labeled PCl5 was proved that the attack of the PCl5 to imidodiphosphoryl tetrachloride does occur about an oxygen atom.
    Notes: Imidodiphosphoryltetrachlorid reagiert mit PCl5 quantitativ zu HCl, POCl3 und Cl3P=N—POCl2. Der mögliche Reaktionsmechanismus wird diskutiert. Mit 32P-markiertem PCl5 gelang der Nachweis, daß der Angriff des PCl5 am Imidodiphosphoryltetrachlorid über ein Sauerstoffatom erfolgt.
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 404 (1974), S. 219-224 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation and Properties of Imidodiphosphoric Acid AmidesTrichlorophosphazene phosphoryldichloride, Cl3P=N—P(O)Cl2, reacts with the stoichiometric amount of anhydrous formic acid resulting the tetrachloride of the imidodiphosphoric acid, Cl2(O)P—NH—P(O)Cl2. This tetrachloride yields with diazomethane the N-methyl compound, Cl2(O)P—N(CH3)—P(O)Cl2. The tetramide of the imidodiphosphoric acid and its octalkyl derivatives are obtained by reaction of the tetrachloride with ammonia, dimethylamine, and diethylamine, respectively.
    Notes: Trichlorphazenphosphoryldichlorid, Cl3P=N—P(O)Cl2, reagiert mit der stöchiometrischen Menge wasserfreier Ameisensäure zum Imidodiphosphorsäuretetrachlorid, Cl2(O)P—NH—P(O)Cl2. Mit Diazomethan bildet dieses das N-Methylderivat, Cl2(O)P—N(CH3)—P(O)Cl2. Durch Umsetzung mit Ammoniak, Dimethyl- bzw. Diäthylamin werden das Imidodiphosphorsäuretetramid sowie die entsprechenden Octaalkylderivate erhalten.
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 437 (1977), S. 275-281 
    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.
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  • 4
    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.
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  • 5
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 320 (1978), S. 389-394 
    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.
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 411 (1975), S. 148-152 
    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.
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  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 435 (1977), S. 268-272 
    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.
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  • 8
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 412 (1975), S. 246-250 
    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.
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  • 9
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 415 (1975), S. 1-7 
    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.
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  • 10
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 430 (1977), S. 227-233 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Imidodiphosphoric Acid EstersImidodiphosphoryl tetrachloride reacts with aliphatic alcohols (C1-C3) as well as with sodium phenolate to form tetraalkylesters or tetraphenylesters of the imidodiphosphoric acid, resp. The tetraalkylesters (alkyl = methyl, ethyl, n-propyl) are also formed by reaction of trichlorphosphazene phosphoryldichloride, Cl3P=N—POCl2, with the corresponding alcohols. The purification of the esters can be reached by destillation of their silyl derivatives followed by desilylation. The esters are associated by intermolecular O…H…O hydrogen bonds.
    Notes: Imidodiphosphoryltetrachlorid reagiert mit Alkanolen (C1-C3) zu den Tetraalkylestern und mit Natriumphenolat zum Tetraphenylester der Imidodiphosphorsäure. Die Tetraalkylester (Alkyl = Methyl, Äthyl, n-Propyl) werden auch bei der Umsetzung von Trichlorphosphazenphosphoryldichlorid, Cl3P=N—POCl2, mit den entsprechenden Alkoholen gebildet. Die Reinigung der Ester gelingt durch Destillation ihrer Silylderivate und deren anschließender Desilylierung. Die Ester sind über intermolekulare O … H … O-Wasserstoffbrücken assoziiert.
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