An Efficient and Facile Synthesis of tert‐Butyl 2‐(Methylamino)‐3‐nitro‐5‐oxo‐4‐aryl‐7,8‐dihydro‐4H‐pyrano[3,2‐c]pyridine‐6(5H)‐carboxylate derivatives in [BMIM]BF4 |
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Authors: | Zhengbing Pan Hui Xu Kaimin Mao Lei Dai Liming Zhao Liangce Rong |
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Abstract: | In this research, we have developed an efficient three‐component reaction for the synthesis of pyrano3,2‐c]pyridine derivatives from the reaction of aromatic aldehydes, tert‐butyl 2,4‐dioxopiperidine‐1‐carboxylate, and N‐methyl‐1‐(methylthio)‐2‐nitroethylen‐1‐amine in BMIM]BF4 medium. The advantages of this method were readily available starting materials, simple reaction conditions, and satisfactory yields. |
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