New technique for synthesizing 2-alkoxyl propylene

Abstract

A process for synthesizing 2-alkoxy propene from dialkoxy propane features that under existane of an acidic material playing both catalyzing and separating roles, the cracking reaction takes place in tower reactor to obtain 2-alkoxy propene from tower top. It has high output rate and selectivity.

Description

technical field [0001] The invention relates to a new synthesis process of 2-alkoxypropene. Background technique [0002] 2-Alkoxypropene is an important pharmaceutical and chemical raw material. Because it has both double bonds and ether bonds, its chemical properties are very active. It is often used as a solvent and auxiliary agent in the paint, textile and leather industries, and also as a key intermediate in the synthesis of medicine, food and feed. Among them, 2-methoxypropene is the most important and widely used alkenyl ether compound, which is used for the synthesis of clarithromycin, pseudoionone, ionone, isophytol, vitamin A, vitamin E, vitamin K2 and other medicines. It is a key intermediate of chemical, chemical and feed products, and has very important uses in industrial production. [0003] There are two methods for synthesizing 2-alkoxypropene: alkyne alcohol condensation and ketal cracking. Among them, the aldol condensatio...

AI Technical Summary

Problems solved by technology

The advantage of this method is that the reaction conversion rate is high and the operation is simple. The disadvantage is that the reaction needs to be carried out at high temperature, electric heating is required, there are many side reactions, the separation is difficult, and the requirements for equipment are also high.

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