Visible light-promoted, iodine-catalyzed selenoalkoxylation of olefins with diselenides and alcohols in the presence of hydrogen peroxide/air oxidant: an efficient access to a-alkoxyl selenides

• 来源期刊: 中国科学:化学（英文版）
• 年，卷（期）: 2018,（3）
• 页码范围: 294-299
• 页数: 6页
• 语种: 英文

摘要

Under iodine-catalyzed and visible light-irradiated aerobic conditions,selenoalkoxylation of olefins with diselenides and alcohols can be efficiently achieved to afford the useful a-alkoxyl selenides in the presence of only 0.5 equiv.of H2O2.Controlling the sub-stoichiometric H2O2 amount is crucial to avoid the non-selective over-oxidation of the diselenides that leads to the ineffective hyper-valent selenium compounds.Meanwhile,under visible light irradiation,the green,safe,and low-cost air can work as a supplemental mild oxidant in the reaction to ensure selective oxidation of the diselenides,full conversion of the reactants,and ultimately good yield of the products.