Radical Cation [2+2] Cycloadditions Enabled by Surface-Assisted Pseudo-Intramolecular Electron Transfers
Radical Cation [2+2] Cycloadditions Enabled by Surface-Assisted Pseudo-Intramolecular Electron Transfers
复制标题
表面辅助伪分子内电子转移实现自由基阳离子 [2 2] 环加成
DOI：
10.1055/a-2039-4825
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发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Okada Yohei
中科院分区：
文献类型：
--
作者：
Adachi Sota;Maeta Naoya;Nakayama Kaii;Wang Zimo;Hashimoto Yasuhiro;Okada Yohei
分子间和分子内的电子转移都可能是决定光化学反应和电化学反应合成结果的关键。在这里，我们报道了分散的二氧化钛纳米颗粒与甲氧基苯的结合，作为一种独特的多相光催化剂，促进了新型环丁烷的形成。虽然机理细节尚不清楚，但本文描述的结果表明，甲氧基苯被吸附在二氧化钛表面，接近形成环丁烷自由基阳离子，实现了物种之间的假分子内电子转移。
Both intermolecular and intramolecular electron transfers can be the key in the determination of synthetic outcomes of photochemical and electrochemical reactions. Herein, we report dispersed TiO2nanoparticles in combination with methoxybenzene to be a unique heterogeneous photocatalyst for facilitating the formation of novel cyclobutanes. Although the mechanistic details are as yet unclear, the results described herein imply that methoxybenzene is adsorbed onto the TiO2surface, coming in close proximity to the forming cyclobutane radical cation, to realize a pseudo-intramolecular electron transfer between the species.