期刊信息
- 刊名： 河北师范大学学报（自然科学版）Journal of Hebei Normal University (Natural Science)
- 主办： 河北师范大学
- ISSN： 1000-5854
- CN： 13-1061/N
- 中国科技核心期刊
- 中国期刊方阵入选期刊
- 中国高校优秀科技期刊
- 华北优秀期刊
- 河北省优秀科技期刊
微波辐射无溶剂KF-Al2O3催化苯甲醛与氰基乙酸乙酯的Knoevenagel缩合反应
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1. 廊坊师范学院化学与材料科学学院, 河北廊坊 065000;
2. 廊坊师范学院材料化学研究所, 河北廊坊 065000 -
DOI：
Knoevenagel Condensation of Benzaldehyde with Ethyl Cyanoacetate Catalyzed by KF-Al2O3 under Microwave Irradiation Without Solvent
摘要/Abstract
摘要：
采用KF-Al2O3为催化剂,在无溶剂微波辐射下苯甲醛与氰基乙酸乙酯发生Knoevenagel缩合反应,得到了较高的产率,并考察了反应条件对产率的影响.结果表明,当n(苯甲醛)∶n(氰基乙酸乙酯)=1∶1,催化剂用量为0.10 g,微波辐射功率为320 W,辐射2.0 min时,产率可达91.67%.
Abstract：
Catalyzed by KF-Al2O3,Knoevenagel condensation of benzaldehyde with ethyl cyanoacetate under microwave irradiation without solvent has been found to proceed with high yield.The facts influencing the yield were studied and discussed briefly.The reaction conditions were:n(benzaldehyde)∶n(ethyl cyanoacetate)=1∶1,the quality of catalyst was 0.10 g,the power of microwave was 320 W,the irradiation time was 2.0 min,the yield was up to 91.67 %.
关键词
关键词：
Knoevenagel缩合
;
KF-Al2O3
;
无溶剂反应
;
微波辐射
Key words：
Knoevenagel condensation
;
KF-Al2O3
;
free-solvent reaction
;
microwave irradiation