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. 26, 2011
Filed:
Mar. 28, 2006
Applicants:
Makoto Watanabe, Yokkaichi, JP;
Tomokazu Ohashi, Yokkaichi, JP;
Toshihide Yamamoto, Yokkaichi, JP;
Inventors:
Assignee:
Tosoh Corporation, Shunan-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 13/465 (2006.01); C07C 22/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An object of the present invention relates to provision of a terphenylene derivative having excellent oxidation resistance and capable of forming a semiconductor active phase by a coating process and an oxidation-resistant organic semiconductor material using the same, as well as an organic thin film. The invention relates to production of a terphenylene derivative represented by the formula (1) by tetralithiating a tetrahaloterphenyl derivative with a lithiating agent and subsequently treating the resulting compound with a copper compound: [ka 1]