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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Fresenius' Zeitschrift für analytische Chemie 108 (1937), S. 339-340 
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Tertiary phosphinedichlorides and hydrazinedichloride as a single phase liquid, give phosphine-azinium-dichlorides R3P—NH—NH—PR3⊐Cl2. Triarylphosphine-azinium-dichlorides can be deprotonated to phosphineazines, R3P = N—N = PR3, by liquid ammonia, while the mixed aryl-alkyl- and the pure alkyl-derivatives need potassium amide. The stability of phosphineazines decrease with replacing aryl- by alkyl-groups. Phosphinedichlorides, the starting materials, were prepared by reacting phosphines with COCl2.
    Notes: Tertiäre Phosphindichloride reagieren mit Hydraziniumdichlorid in der Schmelze zu Phosphinaziniumdichloriden, R3P—NH—NH—PR3⊐Cl2. Die Triarylphosphinazinium-dichloride können schon mit fl. NH3 zu den roten Phosphinazinen, R3P = N—N—N = PR3, dehydrochloriert werden. Bei den gemischten Arylalkyl- und den Alkylderivaten gelingt die Deprotonierung erst mit Kaliumamid. Mit zunehmender Substitution der Aryl- durch Alkylreste nimmt die Stabilität der Phosphinazine rasch ab. Die für die Darstellung der Phosphinaziniumdichloride benötigten tertiären Phosphindichloride wurden durch Phosgenierung der Phosphine gewonnen.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 381 (1971), S. 247-259 
    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 acylating agents with H3PO3 or carbonic acids with PCl3 and calculated amounts of water gives raw products converted by steam treatment into high yields of 1-hydroxyalkane-1,1-diphosphonic acids. A cyclic condensation product of two molecules 1-hydroxyethane-1,1-diphosphonic acid was found in the raw product of the reaction of acetylating agents with H3PO3. Two structure proposals are discussed.
    Notes: Durch Umsatz von Acylierungsmitteln mit H3PO3 oder von PCl3 mit Carbonsäuren und definierten Mengen Wasser bilden sich Produkte aus denen sich durch anschließende Wasserdampfbehandlung in hoher Ausbeute 1-Hydroxyalkan-1,1-diphosphonsäuren isolieren lassen. Aus dem Rohprodukt der Umsetzung von Acetylierungamitteln mit H3PO3 läßt sich außerdem ein cyclisches Kondensationsprodukt aus 2 Molekeln 1-Hydroxyäthan-1,1-diphosphonsäure isolieren. Für letztere Verbindung werden zwei Strukturvorschläge diskutiert.
    Additional Material: 2 Tab.
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 360 (1968), S. 117-136 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: PF3 is hydrolysed in aqueous potassium hydroxide yielding phosphite and fluoride; diluted alkaline hydrogencarbonate solutions, however, give salts of the monofluorophosphorous acid H2PO2F (\documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^3 $\end{document}F-acid). Orthophosphate reacts fast with monofluorophosphorous acid, forming salts of the \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^3 $\end{document}—O—\documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^5 $\end{document}-acid. \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^3 $\end{document}F-acid is stable against iodine in alkaline hydrogencarbonate solution. Bromine oxidizes at a measurable rate. \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^3 $\end{document}F-acid differs from \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^3 $\end{document}—O—\documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^5 $\end{document}-acid by a faster bromine oxidation and a faster hydrolysis in alkaline solutions.Solutions of phosphorous acid in hydrofluoric acid contain an equilibrium amount of \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^3 $\end{document}F-acid. The yields in concentrated hydrofluoric acid were up to 93%.Cleavage of \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^3 $\end{document}—O—\documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^3 $\end{document}-acid by fluoride in nearly neutral solution gives an equimolecular mixture of phosphourus acid and PF-acid in an aquilibrium reaction. Other reactions, interpreted as a phosphorylation of orthophosphoric acid by \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^3 $\end{document}F-acid in neutral solution, are: The formation of \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^3 $\end{document}—O—\documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^5 $\end{document}-acid from \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^3 $\end{document}—O—\documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^3 $\end{document}-acid and orthophosphoric acid (accelerated by fluoride) and the formation of \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^3 $\end{document}—O—\documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^5 $\end{document}-acid from \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^3 $\end{document}—O—\documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^3 $\end{document}-acid by iodine in fluoride containing solutions.
    Notes: PF3 wird durch Kalilauge quantitativ zu Phosphit und Fluorid hydrolysiert, durch verdünnte Alkali-hydrogencarbonat-Lösungen dagegen zu Salzen der monofluorophosphorigen Säure H2PO2F (\documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^3 $\end{document}F-Säure). Mit Orthophosphat reagiert monofluorophosphorige Säure in schneller Reaktion zu Salzen der \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^3 $\end{document}—O—\documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^5 $\end{document}-Säure. Gegen Jod in hydrogencarbonatalkalischer Lösung ist \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^3 $\end{document}F-Säure beständig. Von Brom wird sie mit meßbarer Geschwindigkeit oxydiert. Die \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^3 $\end{document}F-Säure unterscheidet sich von der \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^3 $\end{document}—O—\documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^3 $\end{document}-Säure durch eine schnellere Oxydation mittels Brom und durch eine schnellere Hydrolyse in alkalischen Lösungen.Lösungen von phosphoriger Säure in Flußsäure geben in einer Gleichgewichtsreaktion PF-Säure, wobei in konzentrierter Flußsäure Ausbeuten bis zu 93% erreicht wurden.Die Spaltung der \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^3 $\end{document}—O—\documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^3 $\end{document}-Säure durch Fluorid zu einem äquimolaren Gemisch von phosphoriger Säure und \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^3 $\end{document}F-Säure in annähernd neutraler Lösung ist eine Gleichgewichtsreaktion. Mit einer Phosphorylierung der Orthophosphorsäure durch \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^3 $\end{document}F-Säure in annähernd neutraler Lösung werden weitere Reaktionen gedeutet: die durch Fluorid beschleunigte Bildung der \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^3 $\end{document}—O—\documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^5 $\end{document}-Säure aus \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^3 $\end{document}—O—\documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^3 $\end{document}-Säure und Orthophosphorsäure und die Bildung der \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^3 $\end{document}—O—\documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^5 $\end{document}-Säure aus \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^3 $\end{document}—O—\documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm p}\limits^3 $\end{document}-Säure durch Jod in fluoridhaltigen Lösungen.
    Additional Material: 11 Tab.
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 361 (1968), S. 15-21 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: By reacting anhydrous hydrofluoric acid with H3PO3, PF3 and the new fluoride PHF4 are formed at high yields. Hydrolysis of the latter compound in alkaline solutions gives quantitatively phosphorous acid and fluoride. PHF4 can be split into PF3 and HF easily.The reaction of H3PO2 with HF gives PH2F2 which hydrolyses quantitatively into H3PO2 and HF in alkaline solutions. Unsuccessful attempts were made to prepare PHF2 from PH2F3.
    Notes: Bei der Reaktion zwischen wasserfreier Flußsäure und H3PO3 entsteht PF3 und PHF4 in hohen Ausbeuten. Die Hydrolyse der letzteren Verbindung in alkalischen Lösungen ergibt quantitativ phosphorige Säure und Fluorid. PHF4 kann leicht in PF3 und HF gespalten werden. Die Reaktion von H3PO2 mit HF ergibt PH2F3, das in alkalischer Lösung quantitativ in H3PO2 und HF hydrolysiert. Versuche, aus PH2F3 PHF2 herzustellen, hatten keinen Erfolg.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 65 (1953), S. 96-96 
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 7
    Publication Date: 2007-07-01
    Print ISSN: 0002-1962
    Electronic ISSN: 1435-0645
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Wiley
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  • 8
    Publication Date: 1937-09-01
    Print ISSN: 0016-1152
    Topics: Chemistry and Pharmacology
    Published by Springer
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  • 9
    Publication Date: 2006-10-01
    Print ISSN: 0006-4971
    Electronic ISSN: 1528-0020
    Topics: Biology , Medicine
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  • 10
    Publication Date: 2017-03-01
    Print ISSN: 0162-5098
    Electronic ISSN: 2325-3606
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Wiley
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