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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 107 (1974), S. 34-47 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis and Properties of the 1,2,5-Thiadiborol SystemCleavage of 1,4-diborin derivatives 1a und 2a by triiodoborthiin, redox reactions between o-diiodoarenes, triiodoborane and sulfur, and cyclisation of aryldiiodoboranes with triiodoborthiin lead to the formation of the thiadiborol derivatives 3a and 4a. These iodo compounds are converted by redox reactions and ligand exchange into the corresponding Br, Cl, SCH3 and CH3 derivatives. The halogen compounds form 1:1 and 2:1 donor-acceptor-complexes with the Lewis base (CH3)2S. Substitution of the sulfur by amine- and hydrazine derivatives yields the heterocycles B2C2N, 10, and B2C2N2, 12.
    Notes: Spaltung der 1,4-Diborin-Derivate 1a und 2a mit Trijodborthiin, Redox-Umsetzungen von o-Dijodarenen mit Trijodboran und Schwefel sowie Cyclisierung von Aryldijodboranen mit Trijodborthiin führen zu den Thiadiborol-Derivaten 3a und 4a. Diese Dijodverbindungen lassen sich durch Redox- und Liganden-Austausch-Reaktionen in die entsprechenden Br-, Cl-, SCH3- und CH3-Derivate überführen. Mit der Lewis-Base Dimethylsulfan bilden die Halogen-Derivate 1:1- und 2:1-Donor-Akzeptor-Komplexe. Substitution des Schwefels durch Amin- und Hydrazin-Derivate ergibt die Heterocyclen B2C2N, 10, und B2C2N2, 12.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
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