68298-35-1Relevant articles and documents
Method for continuously synthesizing trans -2 - hexenal by micro-channel reactor (by machine translation)
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Paragraph 0012; 0025; 0026, (2019/08/01)
The invention belongs to the field, organic synthesis. The invention relates to a trans -2 - hexenal method. The method for preparing trans 4 - hexenal by continuous hydrolysis of -2 ethoxy 6 -1 dipropyl 3 -2 - dioxane (for short cyclization intermediate) through a micro-channel reactor is mainly solved by the preparation method. In the prior art, under the 10% presence of dilute acid (Unified), reflux distillation hydrolysis, oil-water layering, oil extraction, and a water layer backwater reactor are continuously distilled to the oil-free layer, and the water is undissolved. There is a long hydrolysis time, for example. Energy consumption is high, aftertreatment is tedious, serialization, hydrolysis yield and the like cannot be realized. By adopting the microchannel reactor, the 20 - 30% dilute acid concentration can be improved, the residence time is shortened, and continuous hydrolysis. The hydrolyzate is simple oil-water layering to obtain the crude product, and the hydrolyzed water layer can be recycled. The defects in the traditional hydrolytic distillation process, hydrolysis, long distillation time, complex process, and high energy consumption are overcome. , The process risk, and is suitable for industrial production. (by machine translation)
