PEG‐SO 3 H as Catalyst for 3,4‐Dihydropyrimidones via Biginelli Reaction Under Microwave and Solvent‐Free Conditions
✍ Scribed by Wang, Xicun; Quan, Zhengjun; Wang, Fang; Wang, Mangang; Zhang, Zhang; Li, Zheng
- Book ID
- 121211053
- Publisher
- Taylor and Francis Group
- Year
- 2006
- Tongue
- English
- Weight
- 83 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0039-7911
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## Abstract Zirconium(IV) 4-sulphophenylethyliminobismethylphosphonate (ZSBEDP) was prepared and characterised by elemental analysis, IR, TG-DSC, and XRD. ZSBEDP was found to be an efficient catalyst for the Biginelli reaction of aromatic aldehyde, ethyl acetoacetate, and urea or thiourea under sol