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研究了一种直接环合的方法，用2-氯-2氯甲基- 4- 氰基丁醛与三氯氧磷反应来制备2-氯-5-氯甲基吡啶。 A synthetic method of direct cyclization was researched that 2-chloro-2-chloromethyl-4-cyanobutyraldehyde was reacted with phosphorus oxychloride to get 2-chloro-5-chloromethylpyridine. | ||
将新戊酰氯氯化为制得的3-氯新戊酰氯在全回流的填充蒸馏塔中进行。 The chlorination of pivaloyl chloride to prepared 3-chloropivaloyl chloride was took place in a packed distillation column with total reflux. | ||
主要产品有：亚磷酸、乙酰氯、环已甲酰氯。 The main products are: -phosphate, chloride, the ring has chloride. | ||
以单质碘为催化剂合成了环戊酮乙二缩酮。 Cyclopentanone ethylene ketal was synthesized with I_2 as catalyst. | ||
本文还用此观点讨论了一些单质和化合物的酸碱性质。 The acidic-basic properties of simple substances and compounds are discussed from this viewpoint. | ||
氯广泛用于杀菌。 Chlorine is widely used to kill germs. | ||
氯用来给水消毒。 Chlorine is used to disinfect water. | ||
逆流解离萃取通过套用萃取酸分离间氯苯胺及对氯苯胺。 The separation ofm-chloroaniline and p-chloroaniline was carried out by countercurrent dissociation extraction(CDE). | ||
以单质碘为催化剂，通过丁醛和乙二醇反应合成了丁醛乙二醇缩醛。 Butyraldehyde glycol acetal was synthesized from butyraldehyde and glycol by using iodine as catalyst. | ||
这是氯哒嗪的分子式。 This is the molecular formula of diazine. | ||
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