摘要 |
The present invention is directed to a process for preparing 2,3-dimethyl-2-butene. 2,3-Dimethyl-2-butene is prepared by isomerizing 2,3-dimethyl-1-butene using at least one acid selected from the group consisting of sulfuric acid and sulfonic acids. By this process. 2,3- dimethyl-2-butene is effectively prepared from 2,3-dimethyl-1-butene using a cheap catalyst such as sulfonic acid or the sulfonic acids. Further, a dimerization reaction product of propene can also be used in the isomerization step without removing a dimerization catalyst from the reaction product. 2,3-Dimethyl-2-butene is a compound used as a basic intermediate in the preparation of agrochemicals, medicines, perfumes, cosmetics, etc. |