FML MS Perkin learned to read at the early age of three. 珀金小姐才三岁便学着读书识字了。
1499-Pretender to the throne Perkin Warbeck is hanged for reportedly attempting to escape from the Tower of London. 1499年,波金·沃贝克,这位英格兰王位的争夺者,被执行了绞刑,并据传闻他曾试图从伦敦塔楼逃走。
As a result: Perkin forgot about malaria and made a mint establishing the synthetic dye industry. 结果:帕金由此忘记了疟疾,转而发展合成染料工业。
Using variety of substituted benzaldehyde, the ligands of sodium substituted benzene acrylic acid have been prepared by the perkin reaction. 利用各种取代苯甲醛,通过Perkin反应或安息香缩合反应制备取代苯基丙烯酸钠盐配体,再与二氯二(甲基)茂钛(锆)反应,得到相应的配合物。
Methods The microsatellite polymorphism analyses were performed to detect the LOH on chromosome 6 and 8 by PCR and Perkin Elmer 377 DNA sequencer in the 21 cases with GBM. 方法应用PCR方法和DNA序列自动分析仪,分析了21例GBM6号、8号染色体上20个、14个微卫星多态性标记的LOH。
The yields of Perkin reactions with PEG-600 were higher than that without it by 10%. PEG-600可使Perkin反应产率提高10%以上;
The traditional cinnamic acid synthesis method by Perkin reaction has weakened its competitive power due to shortcomings such as high reaction temperature, high energy consumption and low product yield. 传统的肉桂酸制备方法&帕金反应法,因反应温度高、能耗多、产率低等缺点而削弱了竞争力。
Catalytic Synthesis of Coumarin by Modified Perkin Method 改进的Perkin法催化合成香豆素
Synthesis of cinnamic acid in ionic liquid 在离子液体中利用Perkin反应合成肉桂酸
Perkin Reaction Catalyzed by Anhydrous Potassium Fluoride 无水氟化钾催化的Perkin反应
The Perkin method for coumarin synthesis from salicylaldehyde and acetic anhydride has been improved by using calcium acetate as catalyst and polyethylene glycol as activator. 对以水杨醛和乙酸酐为原料合成香豆素的工艺进行了改进.采用乙酸钙为催化剂、PEG为活化剂的工艺路线。
Perkin Reaction of Furfural with Acetic Anhydride Catalyzed by Anhydrous Potassium Fluoride and Anhydrous Potassium Carbonate 无水氟化钾和无水碳酸钾催化糠醛与乙酸酐的Perkin反应
The Phase Transfer Catalysis by PEG in Perkin Reaction 聚乙二醇相转移催化剂在Perkin反应中的催化作用
Cinnamic acid was synthesized by Perkin reaction with anhydrous potassium carbonate as alkaline catalyst and PEG-400 as phase transfer catalyst and 4-hydroxyanisole as polymerization inhibitor. 以无水碳酸钾为碱催化剂,PEG-400为相转移催化剂,对羟基苯甲醚为阻聚剂,通过Perkin反应合成肉桂酸,研究了各物料比、回流时间对产品产率的影响。
The curing reaction of modified bismaleimide resin system was measured with DSC 7 instrument of Perkin Elmer Company. 用PERKINELMER公司的DSC7仪器测定了改性双马来酰亚胺树脂体系的固化反应。
A series of3-arylpropenoic acids were prepared by using the Perkin reaction from aromatic aldehyde with potassium carbonate as catalyst. 研究了以无水碳酸钾作催化剂,芳香醛与酸酐反应合成3芳基丙烯酸,用对甲苯磺酸催化酯化反应合成3芳基丙烯酸酯。
The ocean gravity system produced by Perkin Elmer in German has the function of realtime processing gravity data. It can process and analyst the data on board for field staff monitoring the data. KSS31海洋重力仪具有实时重力处理功能,工作人员在现场即可对数据进行处理分析和质量监控。
The chemistry of three-membered rings has come a long way in the past 100 years, since the first cyclopropane derivatives were synthesized by William Henry Perkin in Munich in the laboratory of the eminent chemist Adolf von Baeyer. 自WilliamHenryPerkin在慕尼黑著名的有机化学家AdolfvonBaeyer的实验室首次合成三元环衍生物以来,三元环化学的发展已经有100多年的历史了。
-We have investigated the reaction condition of Knoevenagel condensation and Perkin condensation in the process of total synthesis. 较详细的探索了全合成过程中涉及到的Knoevenagel缩合和Perkin缩合的反应条件。