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:
Oct. 09, 2012
Filed:
Aug. 01, 2008
Koji Abe, Yamaguchi, JP;
Yoshihiro Ushigoe, Yamaguchi, JP;
Yuichi Kotou, Yamaguchi, JP;
Ken Ikuno, Yamaguchi, JP;
Takashi Hosomi, Yamaguchi, JP;
Toyoaki Ihara, Yamaguchi, JP;
Koji Abe, Yamaguchi, JP;
Yoshihiro Ushigoe, Yamaguchi, JP;
Yuichi Kotou, Yamaguchi, JP;
Ken Ikuno, Yamaguchi, JP;
Takashi Hosomi, Yamaguchi, JP;
Toyoaki Ihara, Yamaguchi, JP;
Ube Industries, Ltd., Ube-shi, JP;
Abstract
The present invention is a method for producing an aromatic compound by substituting the sulfonic acid group in a sulfonic acid aromatic-ester with a hydrogen atom in the presence of a platinum group metal catalyst, wherein an alkali metal carboxylate and/or an ammonium formate are made to coexist in the system. According to the present invention, an aromatic compound where the sulfonic acid group in a sulfonic acid aromatic-ester is substituted with a hydrogen atom, can be produced efficiently with good operability without using metal magnesium.