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  • Inorganic Chemistry  (4)
  • Organic Chemistry
  • PHYSICS, SOLID-STATE
  • 1985-1989  (4)
  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 120 (1987), S. 1445-1446 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Ethylidenephosphorane - Ethenylfluorophosphorane (2λ5σ4P-λ5σ5P) Rearrangement2-Methoxy-1,3,2-dioxaphospholane (4) reacts with 2,2,4,4-tetrakis(trifluoromethyl)-1,3-dithietane (1) to furnish 2-methoxy-2-[2,2,2,-trifluoro-1-(trifluoromethyl)ethylidene]-1,3,2λ 5σ5-dioxaphospholane (6) which rearranges upon standing at ambient temperature to form 2-[2,2-difluoro-1-(trifluoromethyl)ethenyl]-2-fluoro-2-methoxy-1,3,2λ5σ5-dioxaphospholane (7).
    Notes: No Abstract
    Additional Material: 1 Tab.
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 121 (1988), S. 379-381 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Trapping Reactions for Unstable [1-Chloro-2,2,2-trifluoro-1-(trifluoromethyl)ethyl] Dialkyl PhosphitesThe reaction of ClP(OR)2 1a-d (R = Me, Et; R-R = CH2CH2, CMe2CMe2) with hexafluoroacetone yields the thermally unstable phosphites ClC(CF3)2OP(OR)2 4a-d besides other products. Trimethyl phosphite converts 4a-d into the phosphates (MeO)2P(O)OC(CF3)2P(OR)2 (R = Me, Et) 5a and b and the phosphonates (MeO)2P(O)C(CF3)2OP(OR)2 (R-R = CH2CH2, CMe2CMe2) 5c and d, Compounds formed in an Arbuzov reaction.
    Additional Material: 3 Tab.
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  • 3
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Pseudochalcogen Compounds. XVIII. Cyanamidolysis of Organophosphoryl-(phosphonyl-) chloridesCyanamidolytic reactions of organophosphoryl- and -phosphonyl chlorides are leading in dependence on the conditions of the reactions to metal-organo-cyanamidophosphates, M[(RO)2P(Y)NCN], and -cyanamidophosphonates, M[(RO)R'P(Y)NCN], M2[RP(Y)(NCN)2] respectively, as well as to the corresponding organo phosphoryl (phosphonyl) hydrogencyanamides, (RO)2P(Y)NHCN, (RO)R'P(Y)NHCN, RP(Y)(NHCN)2 and to Bis-(organophosphoryl)- and Bis-(organophosphonyl)-carbodiimides, (RO)2P(Y)-NCN-P(Y)(OR)2, (RO)R'P(Y)-NCN-P(Y)R' (OR). (Y: O, S). Conditions for synthesis as well as properties and structures of the new compounds are discussed on the basis of characteristic IR- and 31P-NMR-data.
    Notes: Cyanamidolysereaktionen an Organophosphoryl- und -phosphonyl-chloriden führen in Abhängigkeit von den gewählten Reaktionsbedingungen zu Metall-organo-cyanamidophosphaten, M[(RO)2P(Y)NCN], Metall-organo-cyanamidophosphonaten, M[(RO)R'P(Y)NCN], M2[RP(Y)(NCN)2] (Y: O, S), ferner zu den entsprechenden Organophosphoryl-(phosphonyl)-hydrogencyanamiden, (RO)2P(Y)NHCN, (RO)R'P(Y)NHCN, RP(Y)(NHCN)2 sowie zu Bis-(organophosphoryl)-carbodiimiden, (RO)2P(Y)—NCN—P(Y)(OR)2 und Bis-(organophosphonyl)-carbodiimiden, (RO)R'P(Y)-NCN-P(Y)R'(OR). Synthesebedingungen, Strukturen und Eigenschaften der neuen Verbindungen werden anhand der charakteristischen IR- und 31P-NMR-Daten diskutiert.
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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: Bis(trimethylsilyl)phosphates of 1,1,1,4,4,4-Hexafluoro-2,3-bis(trifluoromethyl)-2,3-butanediol and 1,1,1,3,3-Pentafluoro-2-propenolThe monocyclic phosphorane (EtO)3P[OC(CF3)2C(CF3)2O] 1 was hydrolized to give a mixture of an acyclic and a cyclic phosphate, 3 and 4.The trihydroxyphosphorane 2 could not be obtained. Iodotrimethylsilane 6 converts 1 into the silylated derivative of 4 which was found also besides (Me3SiO)2P(O)OC(CF3)2C(CF3)2OSiMe3 8 in the reaction of 3 and 4 with Me3SiCl/(Me3Si)2NH. (Me3SiO)3P 10 and hexafluoroacetone did not yield the tris(trimethylsiloxy)phosphorane 5, but the phosphonate 11 which gave (Me3SiO)2P(O)OC(CF3) — CF2 12 upon heating with the loss of fluorotrimethylsilane.
    Notes: Das monozyklische Phosphoran (EtO)3P[OC(CF3)2C(CF3)2O] 1 hydrolysierte zu einem Gemisch zweier Phosphorsäureester, einem azyklischen 3 und einem zyklischer 4, ohne daß das Trihydroxyphosphoran 2 erhalten werden konnte.Iodtrimethylsilan 6 überführte 1 in das silylierte Derivat von 4, welches neben (Me3SiO)2P(O)OC(CF3)2OSiMe3 8 auch bei der Umsetzung von 3 und 4 mit Me3SiCl/(Me3Si)2NH entstand. Die Reaktion von (Me3SiO)3P 10 mit Hexafluoraceton ergab kein Tris(trimethylsiloxy)-phosphoran 5, sondern den Phosphonsäureester 11, der beim Erhitzen unter Fluortrimethylsilanabspaltung in (Me3SiO)2P(O)OC(CF3) — CF2 12 überging.
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