Al-Jalal Nader A, Ibrahim Maher R, Al-Awadi Nouria A, Elnagdi Mohamed H, Ibrahim Yehia A
Department of Chemistry, Faculty of Science, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait.
Molecules. 2014 Dec 11;19(12):20695-708. doi: 10.3390/molecules191220695.
Irradiation of benzotriazoles 1a-e at λ = 254 nm in acetonitrile solution generated the corresponding 1,3-diradicals which underwent intermolecular cycloaddition with maleimides to afford the corresponding dihydropyrrolo[3,4-b]indoles and with acetylene derivatives to afford indoles as the major products. This offers an interesting and simple access to such ring systems of potential synthetic and biological interest. The structures of the photoproducts were established spectroscopically and by single crystal X-ray crystallography.
在乙腈溶液中，将苯并三唑1a - e在λ = 254 nm下进行辐照，生成相应的1,3 - 双自由基，其与马来酰亚胺发生分子间环加成反应，得到相应的二氢吡咯并[3,4 - b]吲哚，与乙炔衍生物反应则以吲哚作为主要产物。这为获得具有潜在合成和生物学意义的此类环系提供了一种有趣且简便的方法。通过光谱学和单晶X射线晶体学确定了光产物的结构。
