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:
Jan. 10, 2012
Filed:
Jul. 10, 2003
Applicants:
Nobuhiro Ito, Kawagoe, JP;
Tsuneaki Maesawa, Kawagoe, JP;
Kazushige Muto, Kawagoe, JP;
Kosaku Hirota, Gifu, JP;
Hironao Sajiki, Gifu, JP;
Inventors:
Nobuhiro Ito, Kawagoe, JP;
Tsuneaki Maesawa, Kawagoe, JP;
Kazushige Muto, Kawagoe, JP;
Kosaku Hirota, Gifu, JP;
Hironao Sajiki, Gifu, JP;
Assignee:
Wako Pure Chemical Industries, Ltd., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C 63/04 (2006.01); C07C 39/28 (2006.01); C07C 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a method for deuteration of a compound having an aromatic ring, using an activated catalyst, and the method comprises reacting a compound having an aromatic ring with heavy hydrogen source in the presence of an activated catalyst selected from a platinum catalyst, a rhodium catalyst, a ruthenium catalyst, a nickel catalyst and a cobalt catalyst.