Citation:
Yin Xiaogang, Wu Xiaoyun, Wang Ye, Chen Zhiming, Chen Zhuo. Biginelli Reaction Catalysized by I2 Loaded Montmorillonite under Ultrasonic Condition[J]. Chemistry,
;2016, 79(9): 834-838.
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An ultrasound-assisted Biginelli reaction catalysized by I2 loaded montmorillonite was developed using ethylacetoacetate, aromatic aldehyde and urea as starting materials. Influences of solvents, catalysts on the yield were investigated using single factor methods, and the temperature, ultrasonic time, equivalent ratio of starting materials were screened using orthogonal tests. Under the optimized conditoin, the yields of 3,4-dihydropyrimidin-2(1H)one derivatives were up to 86.9%. The products were characterized by 1H NMR, IR and m.p.
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Keywords:
- Montmorillonite,
- I2,
- Ultrasonic assisted,
- Biginelli reaction
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