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:
Aug. 28, 1990
Filed:
Apr. 03, 1989
Applicant:
Inventors:
Jonathan D Rich, Rexford, NY (US);
Terry E Krafft, Schenectady, NY (US);
Philip J McDermott, Troy, NY (US);
Tony C Chang, Ohta, JP;
Assignee:
General Electric Company, Schenectady, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07D / ;
U.S. Cl.
CPC ...
549241 ; 548455 ; 548518 ; 549472 ; 549 59 ; 558360 ; 560 96 ; 562853 ; 562840 ; 564153 ; 568312 ; 568931 ; 570142 ; 570161 ;
Abstract
An improved method for making biaryl compounds is disclosed, in which an aromatic acid halide having at least one strong electron-withdrawing group attached to or within the aromatic ring is reacted with at least one polysilane in the presence of an effective amount of a transition metal catalyst.