Mechanisms of Elimination Reactions. II. Rates of Elimination from Some Substituted 2-Phenylethyl Bromides and 2-Phenylethyldimethylsulfonium Bromides1

WH Saunders Jr, RA Williams

文献索引：Saunders; Williams Journal of the American Chemical Society, 1957 ,  vol. 79, p. 3712,3715            

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被引用次数: 39

摘要

A series of $-substituted 2-phenylethyl bromides and 2-plienyletliyldinieth). lsuiioniuin broiriides has been prepared. The rates of their reactions with sodium ethoxide in ethanol were determined over a range of temperatures and the enthalpics and entropies of activation calculated. All of the compounds studied gave quantitative yields of the corresponding styrenes. The data fit the Hammett equation satisfactorily, giving p= 4-2.15 ...