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- This paper reports the function of anhydrous potassium fluoride and acetonitrile in C-alkylation of active methylene group of acetoacetic ester. 无水氟化钾和乙腈在乙酰乙酸乙酯活泼亚甲基的C-烃基化中的作用。
- 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
- anhydrous potassium fluoride 无水氟化钾
- The acyl chloride product was fluorinated by potassium fluoride and esterified by methanol to synthesize dimethyl tetrafluoroterephthalate. 以氟化钾为氟化剂,环丁砜为溶剂置换氟化,再与甲醇酯化得到四氟对苯二甲酸甲酯;
- This paper reports the synthesis of 2-heptanone in the functions of absolute potassium fluoride and acetonitrile. 报道了在无水氟化钾和乙腈作用下2-庚酮的合成。
- Fluoroaniline is synthesized in two steps from p-nitrochlorobenzene and active potassium fluoride. 以对氯硝基苯和活性氟化钾等为原料,经二步法合成了对氟苯胺。
- With potassium fluoride as catalyst, spirodilactone compound was synthesized from DDSA. 以氟化钾为催化剂,催化十二烯基琥珀酸酐(DDSA)缩合成螺双内酯化合物。
- Then, sodium fluoride, potassium fluoride and (rubidium, cesium) fluoride was separated by concentrating, stepwise precipiting from the solution. 分离后的溶液进行浓缩,分步析出氟化钠、氟化钾和铷铯氟化物。
- Fluorobenzonitrile(4 FBN) was prepared by fluorination of 4 chlorobenzonitrile(4 CBN) with potassium fluoride using 1,3 dimethyl 2 imidazolidone (DMI) as a non polar solvent. 以4氯苯甲腈(4CBN)和无水氟化钾为原料,1,3二甲基2咪唑啉酮(DMI)为反应介质,经氟化反应合成了4氟苯甲腈(4FBN)。
- The conventional production of butanol is improved at potassium fluoride and the results show that the proposed method consumes energy 20% less than the conventional method. 采用氟化钾对正丁醇传统生产方法进行改进,节能计算表明,新方法比传统方法节能20%25。
- Synthetic study of anhydrous potassium tungstate 无水钨酸钾的合成研究
- anhydrous potassium aluminium sulfate 无水硫酸铝钾
- In the process of direct fluoration, tetraphenyl phosphonium bromide, potassium fluoride and sulfolane was used as catalyst, fluorating agent, and high boiling point agent respectively. 将对二氯苯用硝硫混酸硝化获得2,5二氯硝基苯,并以氟化钾为氟化剂,在四苯基溴化膦催化下于环丁砜等高沸点溶剂中直接进行氟化,经水蒸气蒸馏和分馏提纯获得产品。
- Abstract: The density of potassium fluotantalate and its mixed melt salt system with sodium chloride, potassium chloride, sodium fluoride and potassium fluoride are measured by Archimedes principle. 用阿基米德法测定了氟钽酸钾及其与氯化钠、氯化钾、氟化钠、氟化钾等混合熔盐体系在熔融状态下的密度,用线性回归分析方法导出了各熔盐体系的密度与温度的关系。
- Keywords Anhydrous potassium phosphate;Dithiocarbamate;New synthetic method; 无水磷酸钾;氨基二硫代甲酸酯;合成新方法;
- Keywords Synthesis;Orthogonal test;Anhydrous potassium carbonate;Cinnamic acid; 合成;正交试验;无水碳酸钾;肉桂酸;
- Organic Reaction of the Alumina Coated with Potassium Fluoride 氧化铝固载氟化钾催化的有机化学反应
- No potassium did we find in this mineral. 在这种矿石中我们没有发现钾。
- Preparation technique and research progress of potassium fluoride 氟化钾的制备技术及研究进展