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Visible-Light-Mediated Anti-Regioselective Nitrone 1,3-Dipolar Cycloaddition Reaction and Synthesis of Bisindolylmethanes
Organic Letters ( IF 4.9 ) Pub Date : 2017-09-18 00:00:00 , DOI: 10.1021/acs.orglett.7b02251
Lewei Zheng 1 , Fei Gao 1 , Chao Yang 1 , Guo-Lin Gao 1 , Yating Zhao 1 , Yuan Gao 2 , Wujiong Xia 1
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The development of photoredox reactions of 1,3-dipolar cycloaddition of nitrones with alkenes is reported. It offers an efficient synthetic method to obtain isoxazolidine derivatives under mild conditions in synthetically useful yields. The nitrones are cyclized with oxidizable styrenes and aliphatic alkenes via a polar radical crossover cycloaddition reaction through photocatalytic reaction without additives. In addition, bis(indole)methanes can also be prepared through this method.

中文翻译:

可见光介导的抗区域选择性氮1,3-偶极环加成反应和双吲哚基甲烷的合成

据报道,亚硝基的1,3-偶极环加成反应与烯烃发生了光氧化还原反应。它提供了一种有效的合成方法,可在温和条件下以合成有用的收率获得异恶唑烷衍生物。通过极性自由基交换环加成反应,通过无添加剂的光催化反应,使硝酮与可氧化的苯乙烯和脂肪族烯烃环合。另外,双(吲哚)甲烷也可以通过该方法制备。
更新日期:2017-09-18
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