Photooxidation of Hantzsch 1,4-dihydropyridines by molecular oxygen  

作　　者：TUNG ChenHo 

机构地区：[1]Key Laboratory of Photochemical Conversion and Optoelectronic Materials,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences

出　　处：《Chinese Science Bulletin》2010年第25期2855-2858,共4页

基　　金：supported by the National Natural Science Foundation of China (20732007,20972171,50973125);the Ministry of Science and Technology of China (G2007CB808004,2009CB2 20008),and the Bureau for Basic Research of the Chinese Academy of Sciences

摘　　要：Photooxidation of Hantzsch 1,4-dihydropyridines (1,4-DHP,1a-1d) by direct irradiation (λ > 300 nm) under an oxygen atmosphere has been carefully examined in this work. Spectroscopic and electrochemical studies demonstrate that photoinduced singlet electron transfer from 1,4-DHP to molecular oxygen occurs. The generated superoxide radical anion (O2-·) is responsible for this typical photochemical oxidation.Photooxidation of Hantzsch 1,4-dihydropyridines （1,4-DHP, 1a-1d） by direct irradiation （A 〉 300 nm） under an oxygen atmosphere has been carefully examined in this work. Spectroscopic and electrochemical studies demonstrate that photoinduced singlet electron transfer from 1,4-DHP to molecular oxygen occurs. The generated superoxide radical anion （O2-） is responsible for this typical photochemical oxidation.

关 键 词：光氧化反应 二氢 分子氧 超氧自由基 光化学氧化 氧气气氛 化学研究 电子转移 

分 类 号：O644.1[理学—物理化学] TQ460.4[理学—化学]