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  • 1
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Azaborolinyl Complexes, X1). Synthesis and Properties of (1-tert-Butyl-2-methyl-η-1,2-azaborolinyl)carbonylmanganese and-molybdenum Complexes1-tert-Butyl-2-methyl-1,2-azaborolinyllithium (1) reacts with [CH3CN)3Mn(CO)3]PF6 to give (1-tert-butyl-2-methyl-η-1,2-azaborolinyl)tricarbonylmanganese (2). Neutral 1-tert-butyl-2-methyl-1,2-azaboroline (3) and Mo(CO)6 form π-ally(1-tert-butyl-2-methyl-η-1,2-azaborolinyl)-dicarbonylmolybdenum (4). The formation of the allyl group is due to the decomposition of an azaborolinyl ring under the reaction conditions. 2 and 4 are characterized by mass, IR, and NMR spectra. 4 could be investigated by X-ray analysis. Orthorhombic, space group Pbca, Z = 8, a = 1697.4(9), b = 1441.8(5), c = 1219.4(7) pm. The chirality of the azaborolinyl ring causes the formation of enantiomers which exist as a racemate in the crystal.
    Notes: 1-tert-Butyl-2-methyl-1,2-azaborolinyllithium (1) reagiert mit [(CH3CN)3Mn(CO)3]PF6 zum (1-tert-Butyl-2-methyl-η-1,2-azaborolinyl)tricarbonylmangan (2). Neutrales 1-tert-Butyl-2-methyl-1,2-azaborolin (3) und Mo(CO)6 bilden π-Allyl(1-tert-butyl-2-methyl-η-1,2-azaborolinyl)-dicarbonylmolybdän (4). Die Bildung der Allygruppe ist auf den Zerfall eines Azaborolin-Ringes unter den Reaktionsbedingungen zurückzuführen. 2 und 4 werden durch Massen-, IR- und NMR-Spektren charakterisiert. Von 4 konnte eine Röntgenstrukturanalyse durchgeführt werden: orthorhombisch, Raumgruppe Pbca, Z = 8, a = 1697.4(9), b = 1441.8(5), c = 1219.4(7) pm. Die Chiralität des Azaborolinyl-Ringes bedingt die Bildung von Enantiomeren, die im Kristall als Racemat vorliegen.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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