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:
Oct. 13, 1981
Filed:
Aug. 31, 1979
Applicant:
Inventors:
Hiroshi Itatani, Chiba, JP;
Hataaki Yoshimoto, Ichihara, JP;
Akinori Shiotani, Ichihara, JP;
Akiyoshi Yokota, Ichihara, JP;
Motozoh Yoshikiyo, Ichihara, JP;
Assignee:
UBE Industries, Ltd., Ube, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
560 76 ; 560 96 ; 568609 ; 568931 ; 570182 ; 570183 ; 570127 ; 570129 ; 585425 ;
Abstract
A biphenyl compound is produced from a corresponding aromatic monocyclic compound at a high yield thereof and a high percent selectivity thereto, by dehydrogenatively dimerizing the aromatic monocyclic compound with molecular oxygen in the presence of oxalic acid together with a organic palladium salt catalyst, under a pressure higher than the atmospheric pressure.