92618-89-8Relevant articles and documents
Solvent-free Acetylation Procedure
Bhat, Sujata V.,Gupta, Manisha O.,Yadav, Jyoti K.,Vaze, Kedar R.
, p. 590 - 594 (2021/10/07)
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Method for synthesizing bornyl acetate from turpentine
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Paragraph 0036-0280, (2021/01/29)
The invention discloses a method for synthesizing bornyl acetate from turpentine, which relates to the technical field of deep processing of turpentine. The preparation method comprises the followingsteps of proportioning titanium sulfate and hydroxycarboxylic acid to form a composite catalyst, mixing turpentine, acetic acid and the composite catalyst, and reacting in a stirring state, after thereaction is finished, filtering, and removing acetic acid from the filtrate to obtain a solution containing bornyl acetate, neutralizing the solution containing the bornyl acetate, and washing with water to obtain a bornyl acetate crude product, and then fractionating the crude product of the bornyl acetate to obtain the bornyl acetate. The synthesis method provided by the invention is high in catalytic activity, low in cost and high in selectivity on the borneol acetate, and does not need to use a raw material with too high pinene content.
Method for synthesizing isobornyl acetate by camphene
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Page/Page column 5-13, (2018/12/13)
The invention discloses a method for synthesizing isobornyl acetate by camphene. The method comprises the following steps of adding camphene, glacial acetic acid, a main catalyst (hydroxycarboxylic acid) and an additive into a reaction kettle according to a mass ratio of 100:(20 to 400):(1 to 50):(1 to 20), starting to stir, controlling the temperature to 40 to 100 DEG C, and reacting for 2 to 24h, so as to obtain a synthesized product; adding a small amount of water into the synthesized product, standing and delaminating, wherein the upper oil layer is a target product containing isobornyl acetate, the lower layer is acid water containing the catalyst and acetic acid, and the acid water is dewatered and recycled; adding the target product into a water washing tank, adding alkaline water to neutralize, and then adding water to wash, so as to obtain a crude product of the isobornyl acetate; relieving pressure and distilling, so as to obtain the refined isobornyl acetate. The method forsynthesizing the isobornyl acetate by catalyzing the camphene has the advantages that the obtained product has high yield and high purity, and is easy to separate; the used catalyst has high catalyzing activity; the preparation is simple, the repeatability is good, the toxicity is avoided, the corrosion property is low, the isobornyl acetate belongs to regeneration resources, and the industrialization product is easy.
