PROCESS FOR PREPARING 2,3-DIMETHYL-2-BUTENE

摘要

2,3-Dimethyl-2-butene is prepared by isomerizing 2,3dimethyl-1-butene using at least one acid selected from the group consisting of sulfuric acid and sulfonic acids. By this process, 2,3dimethyl-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.