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[Chemical Knowledge]:Properties and Uses of Mesitylene

Mesitylene is an important raw material for chemical production, its molecular formula is C9H12, which has the structural characteristics of three methyl groups replacing three hydrogen atoms on the benzene ring. Mesitylene has many important properties and uses, widely used in medicine, pesticides, dyes, spices and other fields. This article will detail the properties and uses of mesitylene.

1. of the properties of three toluene

1. physical properties of

three toluene is a colorless transparent liquid, pungent odor. Its boiling point is 164.7 ℃, melting point is -44.8 ℃, relative density is 0.866, insoluble in water, soluble in ethanol, ether and other organic solvents. All three toluene steam on the eyes and respiratory tract irritation, inhalation of high concentrations of steam can cause dizziness, headache, nausea and other symptoms.

2. chemical properties of

mesitylene chemical properties are relatively stable, not easy to occur oxidation, reduction and other reactions, but under certain conditions can occur substitution, addition and other reactions. The hydrogen atoms on the benzene ring of mesitylene have certain activity and can be substituted with some electrophilic reagents to generate the corresponding derivatives. In addition, mesitylene may also undergo an addition reaction with an alkene, an alkyne, or the like.

2. the use of mesitylene

1. pharmaceutical intermediates

mesitylene is an important pharmaceutical intermediates, can be used for the synthesis of a variety of drugs, such as anti tuberculosis drugs, antifungal drugs. Among them, the reaction of mesitylene and formaldehyde under acidic conditions can produce trimethylamine, which is an important raw material for the synthesis of anti-tuberculosis drugs.

2. pesticide intermediates

mesitylene can also be used to synthesize pesticides, such as insecticides, fungicides, etc. Among them, the reaction of mesitylene and chlorine gas under light conditions can produce trichloromesitylene, which is a broad-spectrum fungicide and has a good control effect on a variety of crop diseases.

3. dye intermediate

mesitylene is also a dye intermediate, which can be used to synthesize a variety of dyes, such as disperse dyes, reactive dyes, etc. Among them, the reaction of mesitylene and phthalic anhydride under the action of catalyst can produce trimesic acid, and trimesic acid is an important raw material for the synthesis of disperse dyes.

4. fragrance intermediate

mesitylene can also be used to synthesize fragrances, such as artificial musk. Among them, mesitylene and methanol react under acidic conditions to produce mesitylene methanol, which is an important raw material for the synthesis of artificial musk.

In short, mesitylene, as an important chemical raw material, has a wide range of uses, especially in the fields of medicine, pesticides, dyes, spices and so on.
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