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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 104 (1971), S. 1934-1941 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Fluoro Organic Syntheses, III. MonofluorocarbeneFluorocyclopropanes are obtained by treating a mixture of dibromofluoromethane and an olefin with organolithium compounds.  -  The addition of the monofluorocarbene occurs stereospecifically with retention of the olefin configuration and stereoselectively with preference of the syn-isomeric fluorocyclopropane. Therefore, London dispersion forces seem not to be the origin of the syn-stereoselectivity observed with carbene addition reactions.
    Notes: Die Einwirkung lithiumorganischer Reagenzien auf ein Gemisch von Fluordibrommethan und einem Olefin bietet einen direkten Zugang zu Fluorcyclopropanen.  -  Die Addition des Fluorcarbens vollzieht sich stereospezifisch unter Erhalt der vom Olefin vorgegebenen Konfiguration. Sie verläuft außerdem stereoselektiv unter Bevorzugung des syn-isomeren Fluorcyclopropans. Londonsche Dispersionskräfte scheinen demnach für die syn-Stereoselektivität der Carben-Addition nicht verantwortlich zu sein.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
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