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Title: One-pot synthesis of 3,4-dihydropyrimidin-2(1H)-ones catalyzed by acidic ionic liquid
Authors: Ma, Jing-Jun
Zang, Xiao-Huan
Zhou, Xin
Wang, Chun
Li, Jing-Ci
Li, Qing
Keywords: Acidic ionic liquid;Biginelli reaction;Solvent-free;3,4-dihydropyrimidin-2(1H)-ones;Synthesis
Issue Date: Dec-2007
Publisher: CSIR
Abstract: 3,4-Dihydropyrimidin-2(1H)-ones have been synthesized via one-pot reaction of aromatic aldehydes, ethyl acetoacetate and urea or thiourea catalyzed by room temperature ionic liquid [hmim]HSO4. It has been observed that the proposed method is fast, efficient and environmentally benign. The reaction time is 15 ~ 55 min with the yields between 82 ~ 97 %.
Page(s): 2045-2048
ISSN: 0376-4699
Appears in Collections:IJC-B Vol.46B(12) December 2007]

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