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  • Articles  (9)
  • Inorganic Chemistry  (5)
  • General Chemistry  (4)
  • Chemistry and Pharmacology  (9)
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  • Articles  (9)
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  • Chemistry and Pharmacology  (9)
  • 1
    Electronic Resource
    Electronic Resource
    Derivate des Phosphorsäure-o-phenylenesters. 22. Zur Reaktion von Pv-Halogeniden mit PIII-Halogeniden (1981)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 480 (1981), S. 142-148 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Derivatives of o-Phenylene Phosphates. 22. Reactions of Pv-Halides with PIII-HalidesCatechyl phosphorous tribromide 1, catechyl phosphorus trichloride 2 and phosphorus pentachloride 3 react with PIII-halides by ligand exchange at room temperature already.
    Notes: Brenzkatechylphosphortribromid 1, Brenzkatechylphosphortrichlorid 2 und Phosphorpentachlorid 3 reagieren mit PIII-Halogeniden bereits bei Raumtemperatur unter Ligandenaustausch.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19814800917
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  • 2
    Electronic Resource
    Electronic Resource
    Derivate des Phosphorsäure-o-phenylenesters. 21 [1]. Verhalten von Brenzcatechylphosphortribromid gegenüber trikoordinierten Phosphorverbindungen (1980)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 471 (1980), S. 147-154 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Derivatives of o-Phenylene Phosphates. 21. Behaviour of Catechyl Phosphorus Tribromide to Tricoordinated Phosphorus CompoundsThe reactions of the pentacoordinated catechyl phosphorus tribromide 1 with P(III) compounds (4,12,19 and 23) give both the products of the redox reaction and the products of the substitution reaction. The redox reaction is favoured.
    Notes: Bei der Reaktion des pentakoordinierten Brenzcatechylphosphortribromids 1 mit P(III)-Verbindungen (4, 12, 19 und 23) entstehen sowohl die Produkte der Redoxreaktion als auch die Produkte der Substitutionsreaktion. Die Redoxreaktion ist gegenüber der Substitutionsreaktion bevorzugt.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19804710117
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  • 3
    Electronic Resource
    Electronic Resource
    Synthese von Carbonsäuren durch PO-aktivierte Olefinierung von Tetraäthyl-dimethylamino-methylendiphosphonat (1968)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 80 (1968), S. 364-365 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19680800913
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  • 4
    Electronic Resource
    Electronic Resource
    Trimethylammonium-bis(diäthylphosphono)-methylid, ein stabiles N-Ylid (1968)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 80 (1968), S. 445-446 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19680801112
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  • 5
    Electronic Resource
    Electronic Resource
    Derivate des Phosphorsäure-o-phenylenesters. 34. Zur Halogenierung der o-Methoxyphenylester von PIII-Säuren (1986)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 535 (1986), S. 221-228 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Derivatives of o-Phenylene Phosphate. 34. Halogenation of o-Methoxyphenyl Phosphinites, Phosphonites, and Phosphiteso-Methoxyphenyl phosphinites, phosphonites, and phosphites react with halogenes to halogenophosphonium-halides 4, which are stabilized by ligand exchange with the starting material to phosphonium salts or by elimination of methylhalide to cyclic phosphoranes.
    Notes: o-Methoxyphenyl-phosphinite, -phosphonite und -phosphite reagieren mit Halogenen zu Halogenphosphoniumhalogeniden 4, die sich entweder durch Ligandenaustausch mit dem Startprodukt als Phosphoniumsalze oder durch Abspaltung von Methylhalogenid als cyclische Phosphorane stabilisieren.
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19865350426
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  • 6
    Electronic Resource
    Electronic Resource
    NMR-spektroskopische Untersuchung der Reaktion von 3-Aminopropyltriethoxysilan mit Kieselsäurelösungen (1990)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 588 (1990), S. 199-207 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: N.M.R. Spectroscopic Investigation on the Reaction of 3-Aminopropyltriethoxysilane with Silicic Acid Solutions29Si and 14N NMR spectroscopic investigations on the reaction of aminopropyltriethoxysilane (APTS) and Silicic acid (KS) in an acidic water solution (molar ratio APTS/KS = 1:1; CSiO2 = 0.45 M; pH = 2.3) showed a strongly retarded condensation reaction of silicic acids. As motive cocondensation reactions of APTS with KS and the existence of —NH3+…-OSi≡ bonds are discussed. Due to the domination of —NH3+ against —NH2 groups up to pH 10.1 there exist also in neutral and alkaline APTS/KS solutions silicic acids and silicate anions, resp., stable against condensation. By concentration of APTS/KS solutions water soluble solids rich in silicic acid can be prepared.
    Notes: 29Si- und 14N-NMR-Untersuchungen der Reaktion von Aminopropyltriethoxysilan (APTS) und Kieselsäure (KS) in sauren wäßrigen Lösungen (Molverhältnis APTS/KS = 1:1, CSiO2 = 0,45 M; pH = 2,3) zeigen, daß durch APTS die Kondensationsreaktionen der KS stark verlangsamt werden. Als Ursachen werden partielle Kokondensationsreaktionen des APTS mit der KS und das Vorliegen von —NH3+…-OSi≡ Bindungen diskutiert. Durch die Dominanz von —NH3+ gegenüber —NH2-Gruppen bis pH 10,1 liegen auch in neutralen und schwach basischen APTS/KS-Lösungen kondensationsbeständige Kieselsäuren bzw. Silicatanionen vor. Durch Konzentrieren der APTS/KS-Lösungen sind kieselsäurereiche, wasserlösliche Feststoffe darstellbar.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19905880123
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  • 7
    Electronic Resource
    Electronic Resource
    Ammonium-chlor(thio)phosphat-Betaine, eine Klasse koordinationsstabilisierter Chlor(thio)metaphosphate (1991)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 606 (1991), S. 233-241 
    Details
    ISSN: 0044-2313
    Keywords: Ammonium chloro(thio)phosphate betaines ; preparation ; n.m.r., mass spectra ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Ammonium Chloro(thio)phosphate Betaines, a Class of Coordination-stabilized Chloro(thio)metaphosphatesAmmonium chloro(thio)phosphate betaines behave like systems being in equilibrium with tert. amine and monomeric chloro(thio)metaphosphate. In solution at room temperature the amine component can be displaced by stronger donors. Mass spectra reveal the presence of ClPS2 as monomer and dimer, of ClPO2 by fragment ions of the dimer, trimer, and tetramer before reorganization takes place to form PXCl3 and P4X10 (X = O, S). Detection of ClPOS fails owing to fast equilibration into ClPO2 and ClPS2.
    Notes: Ammonium-chlor(thio)phosphat-Betaine verhalten sich wie Systeme, die im Gleichgewicht stehen mit tert. Amin und monomerem Chlor(thio)metaphosphat. In Lösung kann die Amin-Komponente bei Raumtemperatur durch stärkere Donoren verdrängt werden. ClPS2 ist im Massenspektrum als Mono- und Dimeres, ClPO2 in Gestalt von Fragmentionen des Di-, Tri- und Tetrameren nachweisbar, bevor Reorganisation zu PXCl3 und P4X10 (X = O, S) eintritt. ClPOS entzieht sich einem Nachweis durch schnelle Symmetrisierung zu ClPO2 und ClPS2.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19916060125
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  • 8
    Electronic Resource
    Electronic Resource
    Bis(diethoxyphosphinyl)(trimethylammonio)-methylide, a Stable N-Ylide (1968)
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 7 (1968), S. 463-463 
    Details
    ISSN: 0570-0833
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/anie.196804631
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  • 9
    Electronic Resource
    Electronic Resource
    Synthesis of Carboxylic Acids via PO-Activated Olefination of Tetraethyl Dimethylamino-methylenediphosphonate (1968)
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 7 (1968), S. 391-392 
    Details
    ISSN: 0570-0833
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/anie.196803911
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