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:
Apr. 17, 2007
Filed:
Jun. 04, 2002
Applicant:
Hamlin H. Barnes, Fort Collins, CO (US);
Inventor:
Hamlin H. Barnes, Fort Collins, CO (US);
Assignee:
Boulder Scientific Company, Mead, CO (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07F 7/08 (2006.01); C07F 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A cross-coupling synthesis of 2-alkyl-4-(2,6-dialkylphenyl)indenes is described. A 2-alkylidene is treated with a dialkylboronic acid in the presence of a catalyst. A feature of the invention is the use of a cross-coupling catalyst comprising palladium dichloride (1,5-cyclooctadiene) as a cross-coupling catalyst.