作者:T. Matsuura、Y. Kitaura
DOI:10.1016/s0040-4020(01)82991-4
日期:1969.1
less bulky alkyl side chain and fragmentation leading to a carbonyl—alkyl bond fission with a more bulky one. A correlation is found between the photoreactions and the mass spectrometric decomposition of the ketones. These photoreactions have been interpreted in terms of stereoelectronic requirements for the hydrogen abstraction from the n,π* triplet state. Unusual photoreduction of 2,4,6-trimethylbenzophenone
研究了带有空间位阻CO基团的各种烷基2,4,6-三甲基苯基酮的光反应。取决于烷基侧链的庞大性,已经观察到两种类型的反应。分子内氢的提取导致形成新的苯并环丁烯醇,主要是具有较小的烷基侧链,而断裂则导致羰基-烷基键裂变,具有较大的烷基侧裂。在光反应和酮的质谱分解之间发现相关性。这些光反应已根据从n,π *三重态提取氢的立体电子要求进行了解释。还报道了2,4,6-三甲基二苯甲酮的异常光还原。