PHOTOINDUCED OXIDATIVE CLEAVAGE OF ARYLCYCLOPROPANES IN THE PRESENCE OF ORGANIC ELECTRON-ACCEPTOR
作者:Kazuhiko Mizuno、Jun Ogawa、Yoshio Otsuji
DOI:10.1246/cl.1981.741
日期:1981.6.5
The cyclopropane ring of arylcyclopropanes is oxidatively cleaved by irradiation in polar solvents containing nucleophiles such as alcohols, water, and sodium cyanide in the presence of electron-acceptor such as 1,4-dicyanobenzene and 1-cyanonaphthalene, giving nucleophile-incorporated products. This photoreaction proceeds via an electron-transfer from the cyclopropanes to the excited electron-acceptors, and the cation radicals of arylcyclopropanes are involved as key intermediates.
芳基环丙烷的环丙烷环在极性溶剂中通过辐照氧化裂解,溶剂中含有如醇、水和氰化钠等亲核试剂,并存在电子受体如1,4-二氰苯和1-氰萘,从而生成含有亲核试剂的产物。该光反应通过环丙烷向激发态电子受体的电子转移进行,芳基环丙烷的阳离子自由基作为关键中间体参与反应。