The Main Types Of Intermediates

Intermediate refers to semi-finished products, which are intermediate products in the production of certain products. For example, to produce a product, intermediate can be used for production to save costs.
Intermediates are formed by reactions such as sulfonation, alkali melting, nitration, and reduction of cyclic compounds such as benzene, naphthalene, anthracene, etc. For example, benzene is nitration to nitrobenzene, which is then reduced to aniline. Aniline can be chemically processed into dyes, drugs, vulcanization accelerators, etc. Nitrobenzene and aniline are both intermediates.
It is also formed by dehydrogenation, polymerization, halogenation, hydrolysis and other reactions of acyclic compounds such as methane, acetylene, propylene, butane, butene, etc. For example, butane or butene can be dehydrogenated into butadiene, which can be chemically processed into synthetic rubber, synthetic fibers, etc. Butadiene is an intermediate.
Initially, it referred to the intermediate products produced during the synthesis of chemical products such as spices, dyes, resins, drugs, plasticizers, rubber accelerators, etc. using coal tar or petroleum products as raw materials. It now refers to various intermediate products obtained in organic synthesis processes.