Metal-catalyzed Organic Photoreactions. The Photooxidation of Olefins in the Presence of Uranyl Acetate
作者:Eigoro Murayama、Tadashi Sato
DOI:10.1246/bcsj.51.3022
日期:1978.10
was confirmed by spectroscopic studies and isotope-incorporation experiments that (1) the stereochemistry of the hydroxyl and hydroperoxyl groups in the β-hiydroxy hydroperoxides was trans, (2) the hydroxyl group was added to the less substituted carbon of the double bond, and (3) the oxygen atom in the hydroxyl group originated mainly from the water molecule, while the oxygen atoms in the hydroperoxyl
在乙酸双氧铀存在下,烯烃在吡啶中的光氧化得到 β-羟基氢过氧化物。光谱研究和同位素掺入实验证实,(1) β-羟基氢过氧化物中羟基和氢过氧基的立体化学是反式的,(2) 羟基被添加到双键的取代较少的碳上, (3)羟基中的氧原子主要来源于水分子,而氢过氧基中的氧原子主要来源于分子氧。根据这些结果,我们提出了一个反应方案:(i)通过乙酸双氧铀催化的光解从水中形成羟基自由基,(ii)将羟基自由基加成到双键上,(iii)与分子氧产生自由基,(iv) 过氧自由基夺氢得到产物。2-甲基-2-丁烯与溴化三氯甲...