Intramolecular Electron Transfer Initiated Cation and Radical Formation through Carbon−Carbon Bond Activation
作者:Wangyang Tu、Paul E. Floreancig
DOI:10.1021/ol070850k
日期:2007.6.1
Radical cations can be formed in a spatially and temporally controlled manner by appending a sacrificial photooxidant to an easily oxidized substrate, leading to intramolecular electron transfer upon irradiation. The anthraquinone carboxyl group is an effective photooxidant that can promote single electron oxidation from an appended arene. The resulting intermediates undergo a cleavage reaction through
通过将牺牲性光氧化剂附加到易氧化的底物上,可以在空间和时间上控制自由基的形式形成自由基阳离子,从而在辐照时导致分子内电子转移。蒽醌羧基是一种有效的光氧化剂,可以促进附加的芳烃的单电子氧化。所得的中间体通过碳-碳键活化进行裂解反应,以提供阳离子或自由基进行反应以形成一系列产物。