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[Chemical Knowledge]：What are the upstream raw materials for cyclohexanone oxime? What do the downstream products contain?

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Cyclohexanone oxime is an important organic chemical raw material, widely used in medicine, pesticides, dyes and other fields. In the field of raw materials for chemical production, the upstream and downstream related products of cyclohexanone oxime mainly include the following aspects:

upstream products:

1. Cyclohexanone: Cyclohexanone is the main raw material of cyclohexanone oxime, which is produced by ammonia oxidation or phenol method. The market supply of cyclohexanone is stable and the price is relatively low, which provides a good raw material guarantee for the production of cyclohexanone oxime.

2. Hydroxylamine: Hydroxylamine is another important raw material in the production process of cyclohexanone oxime, which is mainly used to react with cyclohexanone to generate cyclohexanone oxime. There are many methods for the preparation of hydroxylamine, including the Lahi method, oximation method, etc.

downstream products:

1. Caprolactam: Caprolactam is an important engineering plastic, which is widely used in the production of fibers, films, pipes and other products. Cyclohexanone oxime can be used as an intermediate in the production of caprolactam by Beckmann rearrangement.

2. Cyclohexanone oxime hydrochloride: Cyclohexanone oxime hydrochloride is an important pharmaceutical intermediate, can be used for the production of anti-tuberculosis drugs, antidepressant drugs. It is prepared by the reaction of cyclohexanone oxime with hydrochloric acid.

3. Nitrogen heterocycles: Cyclohexanone oxime can also be used as a precursor for the synthesis of nitrogen heterocycles, and derivatives such as pyrazole and imidazole can be obtained through further reactions. These compounds are widely used in medicine, pesticides and other fields.

In summary, cyclohexanone oxime plays an important role in the field of chemical production raw materials, and its upstream and downstream related products are extensive, including pharmaceuticals, pesticides, dyes, engineering plastics and so on.

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