Outer-sphere and inner-sphere processes in reductive elimination. Direct and indirect electrochemical reduction of vicinal dibromoalkanes
作者:Doris Lexa、Jean Michel Saveant、Hans J. Schaefer、Su Khac Binh、Birgit Vering、Dan Li Wang
DOI:10.1021/ja00173a002
日期:1990.8
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
作为还原消除中外球和内球过程之间二分法的一个例子,研究了邻位二溴烷烃的还原。根据动力学数据分析,碳电极和芳香族阴离子自由基等外球试剂与邻位二溴烷烃根据“ET”机制发生反应,其中速率决定步骤是协同电子转移键断裂导致β-溴代烷基自由基的反应