The knoevenagel condensation of aromatic aldehydes with ethyl cyanoacetate proceeds smoothly in the presence of potassium fluoride giving products in high yield.
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. 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 electroplating aluminum solution comprises the following components: xylene, tri-ethyl aluminum, sodium fluoride, and 0.01-8% additive.
本发明的电镀铝液组成如下：二甲苯、三乙基铝、氟化钠、0.01% - 8%的添加剂组成。
The electroplating aluminum solution comprises the following components: xylene, tri-ethyl aluminum, sodium fluoride, and 0.01-8% additive.
本发明的电镀铝液组成如下：二甲苯、三乙基铝、氟化钠、0.01% - 8%的添加剂组成。
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