Title:
PRODUCTION METHOD FOR FLUORINE-CONTAINING DIOXOLANE AND COMPOSITION USEFUL FOR PRODUCTION OF SAME
Document Type and Number:
WIPO Patent Application WO/2023/033073
Kind Code:
A1
Abstract:
The present disclosure pertains to: a production method that is for a compound represented by formula (1), and that comprises steps A, B, C, and D; and the like. (Step A) Reacting a compound represented by formula (2) with at least one base selected from the group consisting of hydroxides, carbonates, and alkoxides of alkali metals and alkaline-earth metals to convert the compound into a compound represented by formula (3), thereby obtaining a reaction product. (Step B) Measuring the pH of an aqueous solution of the reaction product obtained in step A, and if the pH is in the range of 7.0-11.0, subjecting the aqueous solution to the next step, and if the pH is out of the range of 7.0-11.0, adjusting the pH of the aqueous solution to 7.0-11.0 and subjecting the resultant pH-adjusted solution to the next step. (Step C) Concentrating the reaction product obtained in step A, a liquid obtained by mixing the reaction product with water, or the pH-adjusted solution, depending on the result of the pH measurement in step B, to obtain a concentrate. (Step D) Heating the concentrate obtained in step C so that the compound represented by formula (3) undergoes pyrolysis, to generate the compound represented by formula (1).
Inventors:
SUZUKI YUUKI (JP)
INO TADASHI (JP)
SHINOKI NORIYUKI (JP)
MINAMI FUMIKO (JP)
MARI DAICHI (JP)
INO TADASHI (JP)
SHINOKI NORIYUKI (JP)
MINAMI FUMIKO (JP)
MARI DAICHI (JP)
Application Number:
PCT/JP2022/032851
Publication Date:
March 09, 2023
Filing Date:
August 31, 2022
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
C07D317/16
Domestic Patent References:
| WO2020230822A1 | 2020-11-19 | |||
| WO2020166632A1 | 2020-08-20 | |||
| WO2020130122A1 | 2020-06-25 | |||
| WO2020095915A1 | 2020-05-14 | |||
| WO2008075545A1 | 2008-06-26 |
Foreign References:
| JP2020023688A | 2020-02-13 | |||
| JP2006143702A | 2006-06-08 | |||
| JP2007504125A | 2007-03-01 | |||
| JPH05339255A | 1993-12-21 | |||
| JPH05213929A | 1993-08-24 |
Other References:
CHIANG HAO-CHUN; FANG MINFENG; OKAMOTO YOSHIYUKI: "Mechanical, optical and gas transport properties of poly(perfluoro-2-methylene-4-methyl-1,3-dioxolane) membrane containing perfluoropolyether as a plasticizer", JOURNAL OF FLUORINE CHEMISTRY, vol. 236, 22 May 2020 (2020-05-22), NL , pages 1 - 4, XP086213275, ISSN: 0022-1139, DOI: 10.1016/j.jfluchem.2020.109572
FANG MINFENG; CHIANG HAO-CHUN; OKAMOTO YOSHIYUKI: "Mechanical and optical properties of the copolymers of perfluoro(2-methylene-4-methyl-1,3-dioxolane) and chlorotrifluoroethylene", JOURNAL OF FLUORINE CHEMISTRY, vol. 214, 8 August 2018 (2018-08-08), NL , pages 63 - 67, XP085462706, ISSN: 0022-1139, DOI: 10.1016/j.jfluchem.2018.08.001
ZHANG BO; LI LINLIN; MIKEĊ FRANTIĊ EK; KOIKE YASUHIRO; OKAMOTO YOSHIYUKI; RINALDI PETER L.: "Multidimensional NMR characterization of perfluorinated monomer and its precursors", JOURNAL OF FLUORINE CHEMISTRY, vol. 147, 24 January 2013 (2013-01-24), NL , pages 40 - 48, XP028987079, ISSN: 0022-1139, DOI: 10.1016/j.jfluchem.2012.12.008
OKAMOTO, Y. MIKES, F. YANG, Y. KOIKE, Y.: "The effect of fluorine substituents on the polymerization mechanism of 2-methylene-1,3-dioxolane and properties of the polymer products", JOURNAL OF FLUORINE CHEMISTRY, vol. 128, no. 3, 8 February 2007 (2007-02-08), NL , pages 202 - 206, XP005880378, ISSN: 0022-1139, DOI: 10.1016/j.jfluchem.2006.12.005
YANG, Y. ; MIKES, F. ; YANG, L. ; LIU, W. ; KOIKE, Y. ; OKAMOTO, Y.: "Investigation of homopolymerization rate of perfluoro-4,5-substituted-2-methylene-1,3-dioxolane derivatives and properties of the polymers", JOURNAL OF FLUORINE CHEMISTRY, vol. 127, no. 2, 1 February 2006 (2006-02-01), NL , pages 277 - 281, XP028044136, ISSN: 0022-1139, DOI: 10.1016/j.jfluchem.2005.12.004
LIU WEIHONG, KOIKE YASUHIRO, OKAMOTO YOSHI: "Synthesis and Radical Polymerization of Perfluoro-2-methylene-1,3-dioxolanes", MACROMOLECULES, vol. 38, no. 23, 1 November 2005 (2005-11-01), US , pages 9466 - 9473, XP093041370, ISSN: 0024-9297, DOI: 10.1021/ma050753b
LIU WEIHONG, KOIKE YASUHIRO, OKAMOTO YOSHI: "Synthesis and Radical Polymerization of Perfluoro-2-methylene-1,3-dioxolanes", MACROMOLECULES, vol. 38, no. 23, 1 November 2005 (2005-11-01), US , pages 9466 - 9473, XP093041370, ISSN: 0024-9297, DOI: 10.1021/ma050753b
FANG MINFENG; CHIANG HAO-CHUN; OKAMOTO YOSHIYUKI: "Mechanical and optical properties of the copolymers of perfluoro(2-methylene-4-methyl-1,3-dioxolane) and chlorotrifluoroethylene", JOURNAL OF FLUORINE CHEMISTRY, vol. 214, 8 August 2018 (2018-08-08), NL , pages 63 - 67, XP085462706, ISSN: 0022-1139, DOI: 10.1016/j.jfluchem.2018.08.001
ZHANG BO; LI LINLIN; MIKEĊ FRANTIĊ EK; KOIKE YASUHIRO; OKAMOTO YOSHIYUKI; RINALDI PETER L.: "Multidimensional NMR characterization of perfluorinated monomer and its precursors", JOURNAL OF FLUORINE CHEMISTRY, vol. 147, 24 January 2013 (2013-01-24), NL , pages 40 - 48, XP028987079, ISSN: 0022-1139, DOI: 10.1016/j.jfluchem.2012.12.008
OKAMOTO, Y. MIKES, F. YANG, Y. KOIKE, Y.: "The effect of fluorine substituents on the polymerization mechanism of 2-methylene-1,3-dioxolane and properties of the polymer products", JOURNAL OF FLUORINE CHEMISTRY, vol. 128, no. 3, 8 February 2007 (2007-02-08), NL , pages 202 - 206, XP005880378, ISSN: 0022-1139, DOI: 10.1016/j.jfluchem.2006.12.005
YANG, Y. ; MIKES, F. ; YANG, L. ; LIU, W. ; KOIKE, Y. ; OKAMOTO, Y.: "Investigation of homopolymerization rate of perfluoro-4,5-substituted-2-methylene-1,3-dioxolane derivatives and properties of the polymers", JOURNAL OF FLUORINE CHEMISTRY, vol. 127, no. 2, 1 February 2006 (2006-02-01), NL , pages 277 - 281, XP028044136, ISSN: 0022-1139, DOI: 10.1016/j.jfluchem.2005.12.004
LIU WEIHONG, KOIKE YASUHIRO, OKAMOTO YOSHI: "Synthesis and Radical Polymerization of Perfluoro-2-methylene-1,3-dioxolanes", MACROMOLECULES, vol. 38, no. 23, 1 November 2005 (2005-11-01), US , pages 9466 - 9473, XP093041370, ISSN: 0024-9297, DOI: 10.1021/ma050753b
LIU WEIHONG, KOIKE YASUHIRO, OKAMOTO YOSHI: "Synthesis and Radical Polymerization of Perfluoro-2-methylene-1,3-dioxolanes", MACROMOLECULES, vol. 38, no. 23, 1 November 2005 (2005-11-01), US , pages 9466 - 9473, XP093041370, ISSN: 0024-9297, DOI: 10.1021/ma050753b
Attorney, Agent or Firm:
SAEGUSA & PARTNERS (JP)
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