Outer-sphere and inner-sphere processes in reductive elimination. Direct and indirect electrochemical reduction of vicinal dibromoalkanes

D Lexa, JM Saveant, HJ Schaefer…

Index: Lexa, Doris; Saveant, Jean-Michel; Schaefer, Hans J.; Su, Khac-Binh; Vering, Birgit; Wang, Dan Li Journal of the American Chemical Society, 1990 , vol. 112, # 17 p. 6162 - 6177

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Citation Number: 95

Abstract

Abstract: The reduction of vicinal dibromoalkanes is investigated as an example of the dichotomy between outer-sphere and inner-sphere processes in reductive elimination. As a result from the analysis of the kinetic data, outer-sphere reagents such as carbon electrodes and aromatic anion radicals react with vicinal dibromoalkanes according to an" ET" mechanism in which the rate-determining step is a concerted electron-transfer bond- ...