Invention Grant
- Patent Title: Method for producing 1,1,1,5,5,5-hexafluoroacetylacetone
- Patent Title (中): 生产1,1,1,5,5,5-六氟乙酰丙酮的方法
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Application No.: US14783706Application Date: 2014-04-02
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Publication No.: US09409843B2Publication Date: 2016-08-09
- Inventor: Takashi Ootsuka , Takashi Masuda , Akihiro Ishii , Mari Imamura , Shunsuke Mimura , Masato Kimura , Hiroshi Minesaki
- Applicant: Central Glass Company, Limited
- Applicant Address: JP Ube-shi
- Assignee: Central Glass Company, Limited
- Current Assignee: Central Glass Company, Limited
- Current Assignee Address: JP Ube-shi
- Agency: Crowell & Moring LLP
- Priority: JP2013-082589 20130411; JP2014-065450 20140327
- International Application: PCT/JP2014/059731 WO 20140402
- International Announcement: WO2014/168056 WO 20141016
- Main IPC: C07C45/26
- IPC: C07C45/26 ; C07C33/00 ; C07C43/00 ; C07C49/167 ; C07C49/227 ; C07C45/45 ; C07C33/42 ; C07C43/178
Abstract:
A production method of a 1,1,1,5,5,5-hexafluoroacetylacetone hydrate according to the present invention includes: step 1: step 1: obtaining a reaction mixture that contains at least 1,1,1,5,5,5-hexafluoro-3-pentyn-2-one or an equivalent thereof by reaction of a 3,3,3-trifluoropropynyl metal with a trifluoroacetate; and step 2: forming the 1,1,1,5,5,5-hexafluoroacetylacetone hydrate by contact of the reaction mixture obtained in the step 1 with water in the presence of an acid. It is possible to produce 1,1,1,5,5,5-hexafluoroacetylacetone by dehydration of the thus-formed hydrate. Thus, the production method according to the present invention is industrially applicable.
Public/Granted literature
- US20160075626A1 Method for Producing 1,1,1,5,5,5-Hexafluoroacetylacetone Public/Granted day:2016-03-17
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