title: Photoinduced Intramolecular addition of 3-acyl-2-haloindoles to alkenes.
abstract: 1,2-Fused indoles and pyrroles were prepared via an efficient intramolecular photoaddition reaction of 1-(omega-alkenyl)-2-haloindole-3-carbaldehydes and 1-(omega-alkenyl)-2-chloropyrrole-3-carbaldehydes. The presence of an acyl group was necessary for the photocyclization reactions. The halogen-atom-retained exo- and endo-cyclization products were generally produced with results similar to those of an atom-transfer cyclization reaction. In contrast, unsaturated cyclization products were obtained in the photoreaction of substrates having methyl groups on the vinyl group.
authors: State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, PR China.
authors: Shen-Ci
authors: SC
authors: Lu
authors: Xiao-Yong
authors: XY
authors: Duan
authors: Zong-Jun
authors: ZJ
authors: Shi
authors: Bing
authors: B
authors: Li
authors: Yu-Wei
authors: YW
authors: Ren
authors: Wei
authors: W
authors: Zhang
authors: Yong-Hui
authors: YH
authors: Zhang
authors: Zhi-Feng
authors: ZF
authors: Tu