Efficient Methods for the Synthesis of Benzopyrano[3,4-c]pyrrolidines by Catalyzed 1,3-Dipolar Cycloaddition of Azomethine Ylides with 3-Substituted Coumarins |
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| Authors: | Li-Ping Fan Wei-Jun Yang Dong-Cheng Xu Xin-Sheng Li |
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| Affiliation: | Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, College of Chemistry and Life Sciences, Zhejiang Normal University , Jinhua , China |
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| Abstract: | With triethylamine as a catalyst, the 1,3-dipolar cycloaddition of azomethine ylides with 3-substituted coumarins proceeded smoothly under mild conditions to afford the desired products benzopyrano[3,4-c]pyrrolidines in good to excellent yields.  |
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| Keywords: | Azomethine ylide benzopyrano[3,4-c]pyrrolidine coumarin 1,3-dipolar cycloaddition |
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