Ionic Liquid as an Efficient Promoting Medium for Synthesis of Bis‐Pyrazolo[3,4‐b:4′,3′‐e]Pyridines

Journal of the Chinese Chemical Society - Tập 55 Số 4 - Trang 755-760 - 2008
Daqing Shi1,2,3, Fang Yang2
1College of Chemistry and Chemical Engineering, Key Laboratory of Organic Synthesis of Jiangsu Province, Suzhou University, Suzhou 215123, P. R. China
2College of Chemistry and Chemical Engineering, Xuzhou Normal University, Xuzhou 221116, P. R. China
3Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu Province, Xuzhou 221116, P. R. China

Tóm tắt

AbstractThe preparation of a series of bis‐pyrazolo[3,4‐b:4′,3′‐e]pyridines by the reaction of 5‐aminopyrazole with aldehydes in ionic liquid [bmim]Br is described. This new method has the advantages of easier work‐up, milder reaction conditions, high yields and environmental friendliness compared with other methods.

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Thông tin xuất bản

Journal of the Chinese Chemical Society

Tập 55 Số 4

755-760

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