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:
Jan. 01, 1991
Filed:
Mar. 02, 1990
Applicant:
Inventors:
Assignee:
Nippon Petrochemicals Company, Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568429 ; 568428 ; 568454 ;
Abstract
A process for selectively hydroformylating a diolefin, which comprises reacting a (1-arylethyl)vinylbenzene with carbon monoxide and hydrogen under the conditions of 40.degree. to 200.degree. C. in reaction temperature and 5 kg/cm.sup.2 or above in reaction pressure in the presence of a transition metal carbonylation catalyst to thereby selectively hydroformylating only the vinyl group and produce .alpha.-((1-arylethenyl)phenyl)propionaldehyde. The starting material to be hydroformylated may be a mixture of the (1-arylethenyl)vinylbenzene with a 1,1-di(substituted aryl)ethylene not substituted by a vinyl group.