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Title:
PRODUCTION METHOD FOR 2-CHLORO-1,1,1,2-TETRAFLUOROPROPANE AND/OR 3-CHLORO-1,1,1,2-TETRAFLUOROPROPANE, AND PRODUCTION METHOD FOR 2,3,3,3-TETRAFLUOROPROPENE
Document Type and Number:
WIPO Patent Application WO/2019/003896
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide: a method for efficiently producing 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) and/or 3-chloro-1,1,1,2-tetrafluoropropane (HCFC-244eb), which are advantageous starting materials for producing 2,3,3,3-tetrafluoropropene (HFO-1234yf), from industrially available materials; and an economically advantageous production method in which 1234yf is efficiently obtained thereby. The production method for HCFC-244bb and/or HCFC-244eb comprises reacting 1,1,1,2-tetrafluoropropane with chlorine. The production method for HFO-1234yf comprises obtaining HCFC-244bb and/or HCFC-244eb by said method and subjecting the obtained HCFC-244bb and/or HCFC-244eb to a dehydrochlorination reaction in the presence of a base and/or a catalyst.

Inventors:
SHIOTA HIDEFUMI (JP)
FURUTA SHOJI (JP)
Application Number:
PCT/JP2018/022409
Publication Date:
January 03, 2019
Filing Date:
June 12, 2018
Export Citation:
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Assignee:
AGC INC (JP)
International Classes:
C07C17/10; C07C17/25; C07C19/10; C07C21/18; C07B61/00
Domestic Patent References:
WO2011162336A12011-12-29
Foreign References:
JP2011520017A2011-07-14
JP2010513437A2010-04-30
JP2005510549A2005-04-21
Attorney, Agent or Firm:
SAKURA PATENT OFFICE, P.C. (JP)
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