Effect of Chain Branching on Electrochemical Carbon-Halogen Bond Fission. Possible Mechanism for the Process

Abstract

and 2-bromo-2-etbylhexoic add (BE) were etuded, the first three for comparison with the previous stud/ (1) . Ir-order to complete the work, For brevity and clarity, the various acids will be subsequently referred to through the use of the abbreviation-^ Indicated» These consist of the initial letters of the subsbituer.ts, other thin bromine, on the alpha carbon atcm, i.e., H is hydrogen, H is methyl, E is ethyl, etc.| in the case of the ethyl esters, Et will be prefixed, e.g., EtMH is ethyl-2-bromopropionate.the ethyl esters of five of these acids were investigated.One i.e., only when the potential has reached a value at which the rate of diffusion is the Uniting process (10). But at the Ei value, this point 2 uas not been reached, i.e., the electroreduction is still the process which is rate-controlling. let the lack of applicability of the ELkovic equation at potentials less than those corresponding to the limiting portion of the wave is never seriously questioned, e.g., it is conventionally (and conveniently) assuioed that when £ « Ei, the surface concentration is equal to one-half the bulk concentration, and so on for other points on the wave, although the boundary condition for the solu- Branching has a very pronounced effect on Ex. (Fig. 1). In the acid a .region, the difference in redusibility between corresponding isosaers ACKNOWLEDGMENT