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:
Feb. 21, 2006
Filed:
May. 30, 2003
Masanori Tsukamoto, Yamaguchi, JP;
Fumiyoshi Yoshikawa, Saitama, JP;
Masataka Fujimoto, Saitama, JP;
Naoto Takada, Saitama, JP;
Yoshikazu Sugimori, Saitama, JP;
Junji Negishi, Saitama, JP;
Masanori Tsukamoto, Yamaguchi, JP;
Fumiyoshi Yoshikawa, Saitama, JP;
Masataka Fujimoto, Saitama, JP;
Naoto Takada, Saitama, JP;
Yoshikazu Sugimori, Saitama, JP;
Junji Negishi, Saitama, JP;
Central Glass Company, Limited, Ube, JP;
Abstract
The invention relates to a process for producing 1,1,1-trifluoroacetone, which is useful as an intermediate of pharmaceuticals and agricultural chemicals, or as a reagent for introducing fluorine-containing groups. This process includes the step of conducting a hydrogenolysis of a halogenated trifluoroacetone, which is represented by the formula [1], by a hydrogen gas, in a liquid phase containing water, in the presence of a catalyst containing a transition metal, where X represents a chlorine, bromine or iodine, and n represents an integer from 1 to 3. It is possible by the process to easily produce 1,1,1-trifluoroacetone with high purity.