期刊
SYNTHETIC COMMUNICATIONS
卷 41, 期 3, 页码 405-410出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/00397910903576669
关键词
1-Butyl-3-methylimidazolium tetrafloroborate; clean synthesis; combinatorial chemistry; heterocycles; pyrano[2,3-c]pyrazoles
资金
- Council of Scientific and Industrial Research, New Delhi, India
A highly efficient synthesis of 4H-pyrano[2,3-c]pyrazoles has been completed using four-component cyclocondensation of hydrazine monohydrate/phenyl hydrazine, ethyl acetoacetate, aldehydes, and malononitrile in the presence of L-proline and room-temperature ionic liquids.
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