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Title:
PRODUCTION METHOD FOR 1,2-DICHLORO-3,3,3-TRIFLUOROPROPENE
Document Type and Number:
WIPO Patent Application WO/2014/046250
Kind Code:
A1
Abstract:
Provided is a production method for 1,2-dichloro-3,3,3-trifluoropropene that includes reacting a base in a liquid phase with 1,2-dichloro-1-halogeno-3,3,3-trifluoropropane and extracting and recovering 1,2-dichloro-3,3,3-trifluoropropene that is thereby generated from the reaction system while the abovementioned reaction is performed. The production method makes it possible to obtain a high yield of 1,2-dichloro-3,3,3-trifluoropropene using a simple method. As a result, it is possible to produce 1,2-dichloro-3,3,3-trifluoropropene on an industrial scale.

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Inventors:
NISHIGUCHI YOSHIO (JP)
OKAMOTO SATORU (JP)
SAKYU FUYUHIKO (JP)
Application Number:
PCT/JP2013/075540
Publication Date:
March 27, 2014
Filing Date:
September 20, 2013
Export Citation:
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Assignee:
CENTRAL GLASS CO LTD (JP)
International Classes:
C07C17/25; C07C21/18; C07B61/00
Foreign References:
JP2010215659A2010-09-30
JP2001322955A2001-11-20
JP2006525339A2006-11-09
Other References:
HASZELDINE ET AL.: "Reactions of Fluorocarbon radicals. Part V. Alternative syntheses for triflouromethylacetylene (3:3:3- trifluoropropyne) and the influence of polyfluoro-groups on adjacent hydrogen and halogen atoms", JOURNAL OF THE CHEMICAL SOCIETY, 1951, pages 2495 - 2504
TARRANT ET AL.: "Free radical addtions involving fluorine compounds. IV. The addition of dibromofifluoromethane to some fluoroolefins", J.AM.CHEM.SOC, vol. 77, 20 May 1955 (1955-05-20), pages 2783 - 2787
Attorney, Agent or Firm:
Takahashi, Hayashi and Partner Patent Attorneys, Inc. (JP)
Patent business corporation Takahashi and wood and partners (JP)
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