dibromination of unactivatedalkenes and alkynes has been demonstrated by using methyl α-bromoacetate as a mild brominating agent. A near-visible light (370 nm) light-emitting diode (LED) mediates this simple dibromination reaction under mild conditions with the inexpensive and nontoxic α-bromoacetate. The reaction proceeds well with both terminal and internal alkenes and alkynes and those contained
Alkylhalides synthesis from selenoxides a new homologization process
作者:L. Hevesi、M. Sevrin、A. Krief
DOI:10.1016/s0040-4039(00)91759-3
日期:1976.7
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 reductiveelimination. 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