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  • 1
    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.
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 603 (1991), S. 145-150 
    ISSN: 0044-2313
    Keywords: Fluoro(organyl)phosphanes ; syntheses ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: A simple Synthesis of Fluoro(organyl)PhosphanesA simple synthesis of fluoro(organyl)phosphanes, RPF2, and R2PF, which is based on the reaction of the corresponding chloro compounds with triethylamine-HF adducts in the presence of free triethylamine, is presented. The method even allows the synthesis of compounds of extremely low stability.
    Notes: Es wird ein einfaches Verfahren zur Synthese von Organyldifluor-und Diorganylfluorphosphanen, RPF2 und R2PF, vorgestellt, das auf der Umsetzung der entsprechenden Chlorverbindungen mit Triethylamin-HF-Addukten in Gegenwart von freiem Triethylamin beruht und auch die Synthese sehr wenig stabiler Vertreter dieser Substanzklasse erlaubt.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
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