J. Org. Chem. 1982,47,159-161 1142-19-4;
NO, 10102-43-9; NOz, 10102-44-0.
(19) Sabbatical visitor from the School of Chemistry, University of New South Wales, Kensington, NSW, Australia.
William A. Pryor,* Daniel F. Church C. K. Govindan, George CranklB Department of Chemistry Louisiana State University Baton Rouge, Louisiana 70803 Received June 12,1981
Evidence for Proton Tunneling in Strong Base Promoted (Stepwise) @-EliminationReactions
Summary: In the case of a single-step, strong base promoted @ elimination, tunneling is recognized by a temperature-dependent isotope effect in which [ AE,]E >> [AEO]Eand A H / A D
