Kinetics of the reactions of laser-flash photolytically generated carbenium ions with alkyl and silyl enol ethers. Comparison with the reactivity toward alkenes, …
J Bartl, S Steenken, H Mayr
Index: Bartl, Joerg; Steenken, Steen; Mayr, Herbert Journal of the American Chemical Society, 1991 , vol. 113, # 20 p. 7710 - 7716
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Citation Number: 99
Abstract
Abstract: Diarylcarbenium ions (benzhydryl cations) are generated from diarylmethyl chlorides by 20-11s laser pulses (248 nm) in acetonitrile solution at 20 OC. The second- order rate constants for their reactions with n-and wnucleophiles (anions, alcohols, water, alkenes, allylsilanes, alkyl and silyl enol ethers) are determined by monitoring the decay of the UV-vis transients at variable nucleophile concentrations. Only reactive nucleophiles ( ...
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