Method of synthesizing isopentenol from butenol

Abstract

The invention is applied to the technical field of synthetic methods of isopentenol, and provides a method of synthesizing the isopentenol from butenol, in particular to a method of generating the isopentenol by double-bond isomerization of 3-methyl-3-butenol under a catalytic action of a catalyst consisting of solid superbase and aluminum isopropoxide, wherein the solid superbase is Na-Na2CO3 / gamma-Al2O3; the dosage of the catalyst is 0.2 percent to 12 percent of the mass of the 3-methyl-3-butenol; the mass ratio of the solid superbase to the aluminum isopropoxide in the catalyst is 1:1 to 1:2; the pressure intensity of reaction is 0.5 to 4MPa, the temperature is 100DEG C to 140DEG C, and the time is 2 to 3h. The method disclosed by the invention has the advantages that reaction conditions are mild; the catalyst is high in activity, is easy to separate and can be repeatedly used; the production cost is low, and environment protection and safety in production are realized; the product is high in purity and selectivity, and is green and environment-friendly; the cost is greatly reduced; the method is a high-efficiency and economic synthetic method, and has a broad prospect.

Description

technical field [0001] The invention relates to the technical field of synthesis methods of prenol, in particular to a method for synthesizing prenol from butenol. Background technique [0002] Superbase reagent is a kind of metallization reaction reagent mixed with organometallic compound and activator, which is widely used in the fields of basic organic synthesis, drug synthesis, electronic material research and development, etc. Compared with a single metallation reagent, it has many superior properties, its preparation method is simple, not only has a high base strength, but also makes the metallation reaction highly regioselective and stereochemically selective. As an environmentally friendly catalyst, solid base catalysts are widely used in organic synthesis and play an important role in process reform. Solid base catalysts form carbanions through electron accepting and accepting ligands to make the reaction happen. So far, great progress has been made in the research...

AI Technical Summary

Problems solved by technology

[0005] In summary, there are obviously inconveniences and defects in the actual use of the existing technology, so it is necessary to improve

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