Process for preparing 2,3-dimethyl-2-butene

Details Process for preparing 2,3-dimethyl-2-butene Process for preparing 2,3-dimethyl-2-butene

C - Chemistry, Metallurgy

07

C

C07C 11/107 (2006.01) B01J 31/02 (2006.01) B01J 31/12 (2006.01) B01J 31/16 (2006.01) C07C 2/08 (2006.01) C07C 5/25 (2006.01)

Patent

CA 2134982

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.

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