Photoinduced electron-transfer fragmentation of amino alcohols: stereochemical effects and connectivity between one- and two-electron events
作者:Xiaohong Ci、Lester Y. C. Lee、David G. Whitten
DOI:10.1021/ja00242a061
日期:1987.4
formed by photoinduced electron transfer are of considerable current interest. Among the possible fates of ions formed by heteroatom oxidations is C-C bond fragmentation. Recently they reported that certain tertiary amines suffer C-C bond cleavage when oxidized by acceptors excited by visible light. For amino ketones this reaction was indicated to proceed via homolytic cleavage of the bond between the
通过光致电子转移形成的自由基离子或自由基离子对的反应是当前相当受关注的。由杂原子氧化形成的离子的可能命运之一是 CC 键断裂。最近他们报告说,某些叔胺在被可见光激发的受体氧化时会发生 CC 键断裂。对于氨基酮,表明该反应通过羰基和胺的 C/sub..cap alpha../ 之间的键的均裂进行,以有效地产生自由基。在此,他们报告了对几种 ..beta..-氨基醇的研究,这些研究证明光氧化还原诱导的 C/sub ..cap alpha../-C/sub ..beta../ 键的裂解可以是一种干净有效的反应与两电子溶剂分解碎裂非常相似。