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:
Sep. 20, 2011
Filed:
Jun. 27, 2007
Tatsuya Ohtsuka, Settsu, JP;
Yoshichika Kuroki, Settsu, JP;
Atsushi Suzuki, Settsu, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
The present invention provides a novel α-fluoromethoxycarboxylic ester represented by Formula (1): (CF)C(OCHF)COOR wherein R is a hydrocarbon group that may have a substituent; a process for producing 1,1,1,3,3,3-hexafluoroisopropyl fluoromethyl ether, the process including hydrolyzing and decarboxylating the α-fluoromethoxycarboxylic ester; and a process for producing an α-fluoromethoxycarboxylic ester represented by Formula (1): (CF)C (OCHF)COOR, the process including reacting an α-hydroxycarboxylic ester represented by Formula (2): (CF)C(OH)COOR with a halofluoromethane in the presence of an alkaline compound. According to the present invention, 1,1,1,3,3,3-hexafluoroisopropyl fluoromethyl ether (sevoflurane), which is known as an anesthetic compound, can be efficiently produced at low cost.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile