The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 08, 1981
Filed:
May. 05, 1980
Applicant:
Inventors:
Jurgen Weber, Oberhausen, DE;
Wolfgang Bernhagen, Mulheim an der Ruhr, DE;
Helmut Springer, Oberhausen, DE;
Assignee:
Ruhrchemie Aktiengesellschaft, Oberhausen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
585324 ; 585639 ; 585664 ; 585668 ;
Abstract
A process for the preparation of 2,3-dimethylbutene-2 is disclosed, which comprises the steps of converting isovaleraldehyde to isopropylacrolein, hydrogenating .alpha.-isopropylacrolein to form 2,3-dimethylbutanol, dehydrating 2,3-dimethylbutanol to form an olefin mixture comprising 2,3-dimethylbutene-1 and 2,3-dimethylbutene-2, and isomerizing the 2,3-dimethylbutene-1 contained in the mixture into 2,3-dimethylbutene-2. The present process is technically simple and inexpensive to utilize, and results in high yields of the desired product.