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。
2
Typically the symptoms involve a change in heart rate, be it a slow down or palpitations or highpotassium levels.
中毒症状常见有心率异常——心率减慢或悸动，或血液钾水平升高。
3
Very high salt content in tomatoes, is a highpotassium low sodium food, is conducive to the prevention and treatment of hypertension.