1 - (4-methylphenyl)-Ethanone uses and properties of

1 - (4-methylphenyl)-Ethanone as colorless needle-like crystals or nearly colorless liquid at lower temperatures that line solidified, was strong and hawthorn fruit and floral aromas like, similar acetophenone aroma. Melting point 28 ℃. Boiling point 225 ℃ (98.1kPa), 112.5 ℃ (1.47kPa), the relative density of 1.0051 (20/4 ℃), refractive index 1.5335, flash point 92 ℃. Soluble in ethanol; ether; benzene; chloroform and propylene glycol, almost insoluble in water. Soluble in ethanol and most of the non-volatile oil, slightly soluble in propylene glycol and mineral oil, insoluble in glycerin and water. Natural products found in rosewood essential oil, oil of mimosa flowers.
Production method
From toluene and acetic anhydride in the presence of anhydrous aluminum chloride, the acetylation reaction. The dried toluene and powdered anhydrous aluminum chloride added to the reaction pot, acetic anhydride was added dropwise with stirring, the temperature was gradually raised to 90 ℃, reaction to release a large number of hydrogen chloride gas. No reaction to produce hydrogen chloride gas, cooled to room temperature, poured into a mixture of ice and concentrated hydrochloric acid and stirred until all dissolved aluminum. The toluene layer was separated, washed with water, washed with 10% sodium hydroxide solution to alkaline, and then washed. Dried over anhydrous magnesium sulfate, vacuum distillation, collecting 93-94 ℃ (0.93kPa) distillate, methyl acetophenone, yield 86%. The improved method is to equimolar amounts of aluminum trichloride and acetyl chloride (or acetic anhydride) was allowed to stand under heating to make the binding thereto Carbon disulfide was added dropwise a toluene insoluble. Calculated by acetyl chloride, the weight yield of 110%.

Instructions for use：
1 - (4-methylphenyl)-Ethanone hawthorn has a similar sub-floral fragrance, and like alfalfa; honey; strawberry flavor, sharp and sweet floral scent. Can be used for the preparation of lilac soap acacia type flavor, etc., can make fruit food flavor. Can be used to shy flower, hawthorn flowers, acacia, locust, primrose, sunflower, hyacinth, lilac, lily, wood, moss, incense and other types. With coumarin, anise aldehyde, piperonal were used in soap lavender, incense Wei, chypre, a new type of mowing. Can be used to trace almonds, vanilla bean flavor of food flavor, but also a small amount for tobacco flavor.



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