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Single Electron Transfer Induced Photoaddition Reactions of Silyl Enol Ether to N-Methylphthalimide

机译:硅烯醇醚与N-甲基邻苯二甲酰亚胺的单电子转移诱导光加成反应

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摘要

Photochemical reactions of N-methylphthalimide with silyl enol ethers have been explored.Irradiations of phthalimide (1) and cyclic silyl enol ethers (5a-b) are observed to promote formation of photoreduced phthalimides and photoaddition products by sequential SET-desilylation pathways.The photoreaction of phthalimide (1) and acyclic silyl enol ethers (5c-d) leads to produce oxetanes which arise by competitive single electron transfer (SET) and classical 2+2 photocycloaddition (Parteno-Biichi reaction) pathways.
机译:研究了N-甲基邻苯二甲酰亚胺与甲硅烷基烯醇醚的光化学反应,观察到邻苯二甲酰亚胺(1)和环状甲硅烷基烯醇醚(5a-b)的辐射通过顺序SET-去甲硅烷基化途径促进光还原邻苯二甲酰亚胺和光加成产物的形成。邻苯二甲酰亚胺(1)和无环甲硅烷基烯醇醚(5c-d)的合成导致生成氧杂环丁烷,后者是通过竞争性单电子转移(SET)和经典2 + 2光环加成(Parteno-Biichi反应)途径产生的。

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