235-05-2Relevant articles and documents
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Simonov et al.
, (1972)
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Efficient copper-catalyzed annulation of 2-formylazoles with 2-haloanilines for the synthesis of pyrrole- and imidazole-fused quinoxalines
Li, Zihao,Yan, Nannan,Xie, Jianwei,Liu, Ping,Zhang, Jie,Dai, Bin
, p. 589 - 593 (2015/05/27)
Promoted by CuI/2-hydroxybenzohydrazide catalytic system, a variety of pyrrole- and imidazole-fused quinoxalines have been efficiently one-pot synthesized from pyrrole-/imidazole-2-carboxaldehyde and 2-haloanilines in moderate to excellent yields. 2-Hydroxybenzohydrazide-promoted CuI-catalyzed one-pot annulation of pyrrole-/imidazole-2-carboxaldehyde with 2-haloanilines for the synthesis of pyrrolo[1,2-α]- and imidazo[1,2-α]quinoxalines under relatively mild conditions is described.
Copper-catalyzed annulation of 2-formylazoles with o-aminoiodoarenes
Reeves, Jonathan T.,Fandrick, Daniel R.,Tan, Zhulin,Song, Jinhua J.,Lee, Heewon,Yee, Nathan K.,Senanayake, Chris H.
supporting information; experimental part, p. 992 - 994 (2010/05/19)
(Chemical Equation Presented) In the presence of catalytic CuI and sparteine, 2-formylpyrroles can be annulated with o-aminoiodoarenes to give substituted pyrrolo[1,2-a]quinoxalines and related heterocycles. The reaction also works for annulation of 2-formylindoles, 2-formylimidazole, 2-formylbenzimidazole, and a 3-formylpyrazole.
