在氟化钾催化下,芳香醛与氰乙酸乙酯发生克脑文格尔缩合反应,得到高产率的缩合产物。
The knoevenagel condensation of aromatic aldehydes with ethyl cyanoacetate proceeds smoothly in the presence of potassium fluoride giving products in high yield.
因此用氟化钾可以有效地分离吡啶水体系。
Thus water could be separated efficiently from the pyridine-water by adding KF into the system.
报道了在无水氟化钾和乙腈作用下2 -庚酮的合成。
This paper reports the synthesis of 2-heptanone in the functions of absolute potassium fluoride and acetonitrile.
在离子液体中用氟化钾氟化是一个新的优良氟化方法。
It is pointed out by author that fluorination with potassium fluoride in ionic liquids is a good fluorination method.
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。
Then, sodium fluoride, potassium fluoride and (rubidium, cesium) fluoride was separated by concentrating, stepwise precipiting from the solution.
氟化钾具有用途广泛、附加值高等特点,在精细化工中有着越来越广泛的用途。
Potassium fluoride is a widely used and high value-added product. Especially in fine chemical industry, its application is more and more wide.
钾盐一种含钾的化合物,尤指如下可溶性化合物:氧化钾、氟化钾以及各种硫酸钾。
Any of several compounds containing potassium, especially soluble compounds such as potassium oxide, potassium chloride, and various potassium sulfates, used chiefly in fertilizers.
得出以间硝基苯磺酸钠为氧化剂、EDTA为络合剂、氟化钾为缓蚀剂、RL - 3为催化剂的配方。
The formulation was obtained which USES sodium m-nitrobenzene sulfonate as oxidant, disodium EDTA as complexing agent, KF as corrosion inhibitor, and RL-3 as catalyst.
在氟化钾催化下,芳香醛与氰乙酸乙酯发生克脑文格尔缩合反应,得到高产率的缩合产物。且只得到E式异构体。
The knoevenagel condensation of aromatic aldehydes with ethyl cyanoacetate proceeds smoothly in the presence of potassium fluoride giving products in high yield. Only the E isomers could be isolated.
在氟化钾催化下,芳香醛与氰乙酸乙酯发生克脑文格尔缩合反应,得到高产率的缩合产物。且只得到E式异构体。
The knoevenagel condensation of aromatic aldehydes with ethyl cyanoacetate proceeds smoothly in the presence of potassium fluoride giving products in high yield. Only the E isomers could be isolated.
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