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. 31, 2007
Filed:
Sep. 30, 2005
Toshihiro Iwakuma, Chiba, JP;
Fumio Moriwaki, Chiba, JP;
Toshihiro Iwakuma, Chiba, JP;
Fumio Moriwaki, Chiba, JP;
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Abstract
A method for producing aromatic amino compound (V): by synthesizing intermediate compound (IV): by the reaction of compound (I): HN—Rwith a mixture of halogenated aryl compounds (II): Ar—X and (III): Ar—X in the presence of a noble metal catalyst, followed by eliminating the substituent Rfrom the nitrogen atom in compound (IV) under an acidic condition or an alkaline condition or by addition of a reducing agent or an oxidizing agent. (R: a substituent having 2 to 50 carbon atoms; Arand Ar: a substituted or unsubstituted hydrocarbon group or heterocyclic group having 6 to 50 carbon atoms and the same with or different from each other; and X: a halogen group). The aromatic amino compound useful as the charge transporting material can be produced efficiently at a great yield without using highly toxic raw materials.