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  • 1
    Electronic Resource
    Electronic Resource
    Note sur la catalyse acide de la réaction des phosphobétaïnes avec le benzaldéhyde (1964)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 47 (1964), S. 159-162 
    Details
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The catalysis by benzoic acid of the reaction between carbethoxymethylene-tri-phenylphosphorane and benzaldehyde, reported by KUCHARDT et al. for benzenic solutions, is reduced by changing the solvent from benzene to chloroform, and by increasing the temperature. These observations are interpreted by specific hydrogen bonding in the transition state, which also explains the lower activation energy of the reaction in chloroform.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/hlca.19640470120
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