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Ultrasound Promoted Synthesis of Arylmethylenemalonitriles Catalyzed by Melamine
Liu, Qing1,2; Ai, Hong Mei3
2016-06-01
发表期刊JOURNAL OF THE CHEMICAL SOCIETY OF PAKISTAN
ISSN0253-5106
卷号38期号:3页码:565-569
摘要

Arylmethylenemalonitriles were synthesized in the presence of melamine through the Knoevenagel condensation of aldehydes with malononitrile in ethanol. Two strategies such as the conventional stirring and ultrasound-assisted method were performed in this work, and improvements were observed by carrying out the reactions under ultrasound irradiation. The effect of frequency and power of ultrasound on the yields was investigated, and the optimum frequency and power was 45 kHz and 240 W, respectively. The Knoevenagel reaction was carried out smoothly under the optimum conditions with the yields of 80-99% within short time. The melamine catalyst showed high activity and reusability, and exhibited no substantial loss of activity over up to four reaction cycles. This work demonstrated that short reaction times and high yields of arylmethylenemalonitriles can be obtained with the facile operation in the presence of the low-toxic, cheap and reusable melamine catalyst.

关键词Arylmethylenemalonitriles Melamine Ultrasound Catalysis
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
收录类别SCI
语种英语
关键词[WOS]FREE KNOEVENAGEL CONDENSATION ; SOLID-BASE CATALYST ; REACTION SYSTEM ; EFFICIENT ; SOLVENT ; WATER
WOS研究方向Chemistry
WOS类目Chemistry, Multidisciplinary
WOS记录号WOS:000381933700025
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/21452
专题多相复杂系统国家重点实验室
作者单位1.Shandong Univ Sci & Technol, Key Lab Low Carbon Energy & Chem Engn, Qingdao 266590, Shandong, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
3.Shandong Univ Sci & Technol, Dept Econ & Management, Tai An 271021, Shandong, Peoples R China
推荐引用方式
GB/T 7714
Liu, Qing,Ai, Hong Mei. Ultrasound Promoted Synthesis of Arylmethylenemalonitriles Catalyzed by Melamine[J]. JOURNAL OF THE CHEMICAL SOCIETY OF PAKISTAN,2016,38(3):565-569.
APA Liu, Qing,&Ai, Hong Mei.(2016).Ultrasound Promoted Synthesis of Arylmethylenemalonitriles Catalyzed by Melamine.JOURNAL OF THE CHEMICAL SOCIETY OF PAKISTAN,38(3),565-569.
MLA Liu, Qing,et al."Ultrasound Promoted Synthesis of Arylmethylenemalonitriles Catalyzed by Melamine".JOURNAL OF THE CHEMICAL SOCIETY OF PAKISTAN 38.3(2016):565-569.
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