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  • 1
    Electronic Resource
    Electronic Resource
    Polycyclische Verbindungen aus 2,5-Norbornadien, Isopropylbenzol und Dehalogenierungs-Produkten von Dihalogeno(diorganylamino)boranen. Reaktion von Bis(diisopropylamino)phenylboran mit Na/K-Legierung und Difluor(diisopropylamino)boran (1992)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 125 (1992), S. 1559-1564 
    Details
    ISSN: 0009-2940
    Keywords: Bis(1,2,3-triborolane) ; Isopropylbenzene, tetraborylated ; 1,2-Bis(diisopropylamino)-1,2-diphenylborane-(4) ; 1,1,2,2-Tetrakis(boryl)ethane ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Polycyclic Compounds from 2,5-Norbornadiene, Isopropylbenzene, and Dehalogenation Products of Dihalogeno(diorganylamino)boranes. Reaction of Bis(diisopropylamino)phenylborane with Na/K Alloy and Difluoro(diisopropylamino)boraneIn the reaction of 2,5-norbornadiene with Na/K alloy and dichloro(diisopropylamino)borane the species 1 was isolated, which contains six boron atoms in two triborolane rings. From isopropylbenzene and the dehalogenation products of (diisobutylamino)difluoroborane the ethenodiborolodiborol system 2 was isolated. When bis(diisopropylamino)phenylborane is treated with F2BN(i-C3H7)2 and Na/K alloy the diborane(4) derivative 5 and 1,1,2,2-tetrakisborylethane (6) are formed together with bis(diisopropylamino)fluoroborane (7). NMR (1, 11B, 13C, 19F) and MS data are given; for 1, 2, 5, and 6 the X-ray structure analyses were performed.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19921250708
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  • 2
    Electronic Resource
    Electronic Resource
    Additions- und Einschiebungsreaktionen von subvalenten Bor-Verbindungen mit Aromaten (1990)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 123 (1990), S. 967-970 
    Details
    ISSN: 0009-2940
    Keywords: Cyclopentadiene, pentamethyl- ; Benzene, 1,2,4,5-tetramethyl- ; o-Xylene ; Boron compounds, subvalent ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Addition and Insertion Reactions of Subvalent Boron Species with Aromatic CompoundsDichloro(diisopropylamino)borane reacts with pentamethyl-cyclopentadienide providing the substitution product 1. A suspension of a sodium-potassium alloy in 1,2-dimethoxyethane and 1,2,4,5-tetramethylbenzene reacts with difluoro(diisopropylamino)borane to give 1,4-bis[fluoro(diisopropylamino)-boryl]-2,3,5,6-tetramethyl-2,5-cyclohexadiene(3). If o-xylene is used instead of 1,2,4,5-tetramethylbenzene in this reaction, 1,4-bis[fluoro(diisopropylamino)boryl]-2,3-dimethyl-2,5-cyclohexadiene (4) is the main product; however, the bicyclic compound 5 is also formed by formal insertion of two aminoborene units “BNR2” into the carbon skeleton and by addition of two (FBNR2) units. The compounds are characterized by elemental analyses and spectroscopically [MS, NMR (1H, 11B, 13C, 19F)]. An X-ray structure analysis of 5 is presented.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19901230505
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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