Helvetica Chimica Acta p. 2733 - 2737 (1981)
Update date:2022-08-30
Topics:
Szele, Ivanka
Reaction rates for the protodesilylation of trimethylphenylsilane and of <2,4,6-2H3>-trimethylphenylsilane by HClO4, were measured in aqueous methanol (2:5, v/v) and the secondary deuterium isotope effect for the reaction was found to be kH/kD3=0.79.The magnitude of the observed isotope effect supports a mechanism in which the rate-determining step is the proton transfer from the hydronium ion to the silane to form a ?-intermediate.
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