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Direct Synthesis of Pyrrolo[1,2-α]quinoxalines via Iron-Catalyzed Transfer Hydrogenation between 1-(2-Nitrophenyl)pyrroles and Alcohols : Direct Synthesis of Pyrrolo[1,2-alpha]quinoxalines via Iron-Catalyzed Transfer Hydrogenation between 1-(2-Nitrophenyl)pyrroles and Alcohols

Cited 27 time in Web of Science Cited 30 time in Scopus
Authors

Chun, Simin; Ahn, Jiwon; Putta, Ramachandra Reddy; Lee, Seok Beom; Oh, Dong-Chan; Hong, Suckchang

Issue Date
2020-12-04
Publisher
American Chemical Society
Citation
Journal of Organic Chemistry, Vol.85 No.23, pp.15314-15324
Abstract
Herein, we describe novel iron-catalyzed transfer hydrogenation between alcohols and 1-(2-nitrophenyl)pyrroles for the synthesis of pyrrolo[1,2-alpha]quinoxalines. The tricarbonyl (eta(4)-cyclopentadienone) iron complex catalyzed the oxidation of alcohols and the reduction of nitroarenes, and the corresponding aldehydes and aniline were generated in situ. The resulting Pictet-Spengler-type annulation/oxidation completed the quinoxaline structure formation. The protocol tolerated various kinds of functional groups and provided 29 samples of 4-substituted pyrrolo[1,2-alpha]quinoxalines. The developed method was also applied for the synthesis of additional polyheterocycles.
ISSN
0022-3263
URI
https://hdl.handle.net/10371/202002
DOI
https://doi.org/10.1021/acs.joc.0c02145
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  • College of Pharmacy
  • Department of Manufacturing Pharmacy
Research Area Development of methodologies using metal catalyst, Total synthesis of natural products

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