Organic intermediates refer to the intermediate products that use coal tar or petroleum products as raw materials to make dyes, pesticides, medicine, resins, auxiliaries, plasticizers and so on. Because it was originally used in the manufacture of dyes, also known as dye intermediates. It is a semi-finished product, is the production of some products in the middle of the product, when the need to produce a product, directly from the intermediate to produce, can save costs.
The intermediate is formed by sulfonation, alkali melting, nitration and reduction of cyclic compounds such as benzene, naphthalene and anthracene. For example, benzene is nitrated to nitrobenzene and then reduced to aniline, which can be chemically processed into dyes, drugs, vulcanization accelerators, and so on. Both nitrobenzene and aniline are intermediates. It is also made of acyclic compounds such as methane, acetylene, propylene, butane and butene by dehydrogenation, polymerization, halogenation, hydrolysis and so on. For example, butane or butene is dehydrogenated to butadiene, butadiene can be chemically processed into synthetic rubber, synthetic fiber and so on. Butadiene is an intermediate.
Organic intermediates initially refer to the intermediate products produced in the process of using coal tar or petroleum products as raw materials to synthesize chemical products such as spices, dyes, resins, drugs, plasticizers, rubber accelerators and so on. It generally refers to various intermediate products obtained in the process of organic synthesis.
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