Rapid synthesis of hexahydropyrrolo[3,4-b]pyrrole-fused quinolines via a consecutive [3 + 2] cycloaddition and reduction/intramolecular lactamization cascade
文献信息
发布日期
2020-08-10
DOI
10.1039/D0QO00858C
影响因子
5.281
作者
Yan-Liang Lin, Yun-Ta Lee, Yi-Ting Huang
查看原文
摘要
An unprecedented synthesis of novel hexahydropyrrolo[3,4-b]pyrrole-fused quinolines is achieved through the sequential [3 + 2] cycloaddition reaction of azomethine ylides with maleimides followed by intramolecular lactamization. Condensation of the α-amino acid methyl ester with 2-nitrobenzaldehyde leads to an ester stabilized azomethine ylide which further reacts with maleimide to form hexahydropyrrolo[3,4-c]pyrrole. After the reduction of a nitro group, an unusual transamidation reaction is observed, furnishing the novel hexahydropyrrolo[3,4-b]pyrrole-fused quinolines. Isolation of the hexahydropyrrolo[3,4-c]pyrrole amide intermediate revealed the pathway of the reaction mechanism.
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来源期刊
Organic Chemistry Frontiers
CiteScore:
7.8
自引率:
8.7%
年发文量:
724
Organic Chemistry Frontiers publishes high-quality research from across organic chemistry. Emphases are placed on studies that make significant contributions to the field of organic chemistry by reporting either new or significantly improved protocols or methodologies. Topics include, but are not limited to the following: Organic synthesis Development of synthetic methodologies Catalysis Natural products Functional organic materials Supramolecular and macromolecular chemistry Physical and computational organic chemistry
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