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- The Knoevenagel condensation of armatic aldehydes and malononitrile or cyanacetic ester is carried out by DMF as solvent without catalyst.The process gives high yields of products. 本文报道了无外加催化剂条件下以DMF为溶剂芳香醛与丙二腈或氰基乙酸乙醇进行克脑文盖尔缩合反应,此法产率较高。
- Knoevenagel condensation reactions Knoevenagel缩合反应
- Knoevenagel condensation reaction Knoevenagel缩合反应
- Synthesis of Arylidene Meldrum's Acids via the Knoevenagel Condensation Reaction under Grinding 无溶剂研磨条件下芳基亚甲基麦氏酸的合成
- Knoevenagel Condensation of 3-Formylchromone with Active Methylene Compound under Microwave Irradiation 微波促进3-甲酰基色酮与活性亚甲基的缩合反应
- A cloud is a condensation of water vapour. 云是由水蒸汽凝缩而成的。
- His shaving mirror was covered with condensation. 他的剃须镜上有一层小水珠。
- Knoevenagel condensation [化] 克内文纳格尔缩合反应
- A brief summary; a condensation. 概要简洁的概括; 总结
- A condensation to quinoid systems occurs. 发生了醌型体系的缩合反应。
- There was condensation on the windows. 玻璃窗上凝结着水珠。
- There was condensation on the glass. 玻璃杯上凝结着水珠。
- By this means, rapid condensation takes place. 用这种方法,冷凝很快。
- Most condensation reactions are equilibria. 大多数的缩合反应是平衡反应。
- The windows were misted up with condensation. 窗户上凝满了水珠,一片模糊。
- Condensation is very rapid at PH 7-9. PH值7-9时缩聚极快。
- It removes condensation water and stop leakage. 它能迅速、自动排除结水,有效地阻止蒸汽泄漏。
- His shaving mirror was covered with condensation . 云是由水蒸汽凝缩而成的。
- The moisture condensation can be identified by the visual evidence. 湿汽的凝聚能够靠视觉辩别。
- The particles can be detected with a condensation nucleus counter. 这种粒子可以用凝结核计数器探测到。