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[Chemical Knowledge]：Properties and Uses of Methyl Allyl Alcohol

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Methyl allyl alcohol (Methallyl alcohol, MAL) is an important organic compound, which is widely used as a raw material for chemical production. It has unique chemical properties and can be used to synthesize various polymer materials, spices, pharmaceutical intermediates, etc. This article will detail the properties and uses of methallyl alcohol.

1. the nature of methyl allyl alcohol

methyl allyl alcohol is a colorless and transparent liquid with a strong pungent odor. Its molecular formula is C4H6O, the structure contains carbon-carbon double bonds and alcohol hydroxyl, making methyl allyl alcohol has a high chemical activity. The following are the main properties of methyl allyl alcohol:

1. Physical properties: The boiling point of methyl allyl alcohol is 97°C, the density is 0.93g/cm³, the refractive index is 1.431, and the flash point is 28°C. It is soluble in water, ethanol, ether and other organic solvents.
2. Chemical properties: Methyl allyl alcohol carbon double bond and alcohol hydroxyl make it easy to add, oxidation, esterification and other reactions. For example, methallyl alcohol may undergo an esterification reaction with an acid to produce a methallyl ester, or an addition reaction with an aldehyde or a ketone to produce an aldol condensate.

2. the use of methyl allyl alcohol

methyl allyl alcohol as an important chemical raw material, widely used in the following fields:

1. polymer material synthesis: methyl allyl alcohol can be used as a monomer to participate in the polymerization reaction, the generation of polymer materials with special properties. For example, methallyl alcohol is copolymerized with monomers such as styrene and acrylic acid to obtain resin materials with excellent properties, which are used for the manufacture of coatings, adhesives and the like.
2. Perfume synthesis: Methyl allyl alcohol can be used as a precursor of perfume and synthesize various perfumes through chemical reactions. For example, methyl allyl alcohol is reacted with an aldehyde compound to obtain an ester fragrance having a floral and fruity flavor.
3. pharmaceutical intermediates: methyl allyl alcohol can be used for the synthesis of certain pharmaceutical intermediates, further preparation of antibacterial drugs, anti-tumor drugs and other drugs. For example, methallyl alcohol can be synthesized epoxide, and then through the ring reaction to obtain antitumor drug etoposide.
4. Other fields: Methyl allyl alcohol can also be used to synthesize surfactants, lubricating oil additives and other chemical products.

In conclusion, as an important chemical raw material, methyl allyl alcohol has been widely used in polymer materials, spices, medicine and other fields. With the continuous development of science and technology, the application field of methallyl alcohol will be further expanded.

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