串联
环加成
光催化
化学
咔唑
光化学
催化作用
可见光谱
电子转移
级联反应
辐照
光诱导电子转移
氧化磷酸化
组合化学
有机化学
光电子学
复合材料
核物理学
物理
材料科学
生物化学
作者
Chengjuan Wu,Wen-Xiao Cao,Bin Chen,Chen‐Ho Tung,Li‐Zhu Wu
出处
期刊:Organic Letters
[American Chemical Society]
日期:2021-02-26
卷期号:23 (6): 2135-2139
被引量:14
标识
DOI:10.1021/acs.orglett.1c00290
摘要
Reported herein is the first example of the synthesis of carbazoles via oxidative cyclization of 3-alkenylindoles with styrenes under visible light. The irradiation of a catalytic amount of [Ir(dtbbpy)(ppy)2][PF6] as the photocatalyst enables various 3-alkenylindoles and styrenes to undergo tandem [2 + 2] cycloaddition/rearrangement, thereby leading to carbazole derivatives in good to excellent yields under aerobic conditions. Mechanistic studies reveal that photoinduced energy transfer followed by electron transfer is responsible for the tandem reaction.
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