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:
Jul. 22, 2014
Filed:
Mar. 04, 2011
Tamotsu Takahashi, Sapporo, JP;
Ken-ichiro Kanno, Sapporo, JP;
Shi LI, Sapporo, JP;
National University Corporation Hokkaido University, Hokkaido, JP;
Abstract
The present invention provides a 6,13-dihalogen-5,14-dihydropentacene derivative and a method for production thereof. Compounds (b) and (c) are reacted through cross-coupling reaction in the presence of a metal compound and a lithiating agent to synthesize compound (d), which is then halogenated to thereby obtain a 6,13-dihalogen-5,14-dihydropentacene derivative (compound (e)). [wherein Xand Xare each a halogen atom, and R, R, R, R, R, R, R, R, Rand Rare each a hydrogen atom, an optionally substituted C-Chydrocarbon group, etc.]
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile