Novel Electron Transfer Process of Lipshutz Cuprates: An Efficient Homo-coupling Reaction of Aryl Halides

摘要

The electron transfer reaction from Lipshutz cuprates,which can be easily prepared from aryl bromides,to 1,4-benzoquinones was found to proceed smoothly,affording the corresponding homo-coupling products in modest to excellent yields.This process can be also applied for the construction of the macrocyclic systems,and the 10-membered ring cyclophanes can be obtained selectively.