67634-14-4Relevant academic research and scientific papers
A method of preparing intermediates sea breeze aldehyde
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Paragraph 0066-0075, (2017/02/09)
The invention discloses a method of preparing a floralozone intermediate. Under the action of an aqueous sulfuric acid solution and a quaternary ammonium salt as a phase transfer catalyst, by controlling the reaction temperature, hydrogen chloride gas is continuously fed into a reaction system containing ethylbenzene and paraformaldehyde so as to perform chloromethylation of the ethylbenzene, and ethylbenzyl chloride with a purity higher than 95% and a yield being 85-94% is finally prepared. By adoption the ethylbenzyl chloride as the intermediate, floralozone can be prepared by condensing the intermediate and isobutyraldehyde.
A method of preparing sea breeze aldehyde
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Paragraph 0073-0077; 0090-0092, (2017/02/23)
The invention discloses a preparation method of floralozone. The preparation method comprises the steps of dropwise adding isobutyraldehyde into an ethyl benzyl chloride contained reaction system through controlling the reaction temperature under the action that sodium hydroxide and quaternary ammonium salt compounds are used as phase transfer catalysts, and finally, preparing at the yield of 70-85% to obtain floralozone with the content up to more than 94%. The preparation method of floralozone, disclosed by the invention, is low in yield of three wastes, strong in process operability and low in cost.
