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:
Mar. 27, 2007
Filed:
Jul. 22, 2003
Daisuke Ura, Omuta, JP;
Hiroyuki Katsuta, Mobara, JP;
Toshio Kitashima, Omuta, JP;
Kenichi Sato, Omuta, JP;
Daisuke Ura, Omuta, JP;
Hiroyuki Katsuta, Mobara, JP;
Toshio Kitashima, Omuta, JP;
Kenichi Sato, Omuta, JP;
Mitsui Chemicals, Inc., Tokyo, JP;
Abstract
A method for reducing a sulfur-containing compound by hydrogenation using a noble metal catalyst which method is exemplified by an industrial method for producing a 2-alkyl-3-aminothiophene derivative with high economical efficiency by hydrogenating a 2-alkenyl-3-aminothiophene derivative using the noble metal catalyst. 2-Alkyl-3-aminothiophene derivatives are useful compounds in the fields of medicine and agriculture, and in particular, useful in bactericides for agriculture or gardening, or intermediates of the bactericides. The hydrogenation reaction temperature is controlled at 150° C. to 300° C. and the method allows the used noble metal catalyst to be recovered and reused.