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Ruthenium-Catalyzed Synthesis of Pyrrolo[1,2-a]quinoxaline Derivatives from 1-(2-Aminophenyl)pyrroles and Sulfoxonium Ylides
Synlett ( IF 2 ) Pub Date : 2020-05-12 , DOI: 10.1055/s-0040-1707119
Guo-Sheng Huang 1 , Xin-Feng Cui 1 , Fang-Peng Hu 1 , Xiao-Qiang Zhou 1, 2 , Zhen-Zhen Zhan 1
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A ruthenium-catalyzed [5+1] annulation of 1-(2-aminophenyl)pyrroles with α-carbonyl sulfoxonium ylides is reported. This reaction provides a one-step method for synthesizing pyrrolo[1,2-a]quinoxaline derivatives under ambient conditions. The system proceeds with a short reaction time and a high functional-group tolerance. Notably, this divergent protocol tolerates β-keto sulfoxonium ylides and can be applied to α-ester sulfoxonium ylides. A preliminary study was made of the mechanism of the reaction, and a reaction pathway is proposed.

中文翻译:

钌催化合成吡咯并[1,2-a]喹喔啉衍生物从1-(2-氨基苯基)吡咯和磺鎓叶立德

报道了钌催化的 1-(2-氨基苯基)吡咯与 α-羰基锍叶立德的 [5+1] 环化。该反应提供了一种在环境条件下合成吡咯并[1,2-a]喹喔啉衍生物的一步法。该系统以较短的反应时间和较高的官能团耐受性进行。值得注意的是,这种不同的协议耐受 β-酮锍叶立德,并可应用于 α-酯锍叶立德。对该反应机理进行了初步研究,并提出了反应途径。
更新日期:2020-05-12
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