Title:
METHOD FOR PRODUCING COMPOSITION CONTAINING PURIFIED FLUORINE-CONTAINING ETHER COMPOUND
Document Type and Number:
WIPO Patent Application WO/2023/204189
Kind Code:
A1
Abstract:
Provided is a method for producing a composition containing a purified fluorine-containing ether compound. A method for producing a composition containing a purified fluorine-containing ether compound, said fluorine-containing ether compound being represented by general formula (1): CHX1X2CF2OX3 (in the formula: X1 and X2 are the same as or different and represent a hydrogen atom, a fluorine atom or a trifluoromethyl group; and X3 represents an alkyl group having 1-6 carbon atoms and optionally containing a fluorine atom, provided that both X1 and X2 are not trifluoromethyl groups), said method including: step (A) for, in the presence of the fluorine-containing ether compound represented by general formula (1), reacting a fluorine-containing olefin compound represented by general formula (2): CX1X2=CF(CF2)nOX3 (in the formula: n is 0 or 1; and X1, X2 and X3 are as described above, provided that when X1 or X2 is a trifluoromethyl group, n is 0, and both X1 and X2 are not trifluoromethyl groups) with a nitrogen-containing compound and thus converting the fluorine-containing olefin compound represented by general formula (2) into an adduct of the nitrogen-containing compound and/or a fluorine-containing carboxylic acid analogue to thereby obtain a composition containing the fluorine-containing ether compound represented by general formula (1) and the adduct of the nitrogen-containing compound and/or the fluorine-containing carboxylic acid analogue, wherein the nitrogen-containing compound is nitrogen-containing compound A having a structure in which an acyl group is bonded to a nitrogen atom and/or nitrogen-containing compound B that is a tertiary amine compound; and step (B) for separating the adduct of the nitrogen-containing compound and/or the fluorine-containing carboxylic acid analogue from the composition obtained in step (A) to obtain a composition containing the purified fluorine-containing ether compound.
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Inventors:
OKADA MICHIAKI (JP)
YOSHIYAMA ASAKO (JP)
KISHIMOTO MASAYUKI (JP)
KAWAKAMI YUKA (JP)
KUROKI YOSHICHIKA (JP)
HOSHIYA NAOYUKI (JP)
MARI DAICHI (JP)
YOSHIYAMA ASAKO (JP)
KISHIMOTO MASAYUKI (JP)
KAWAKAMI YUKA (JP)
KUROKI YOSHICHIKA (JP)
HOSHIYA NAOYUKI (JP)
MARI DAICHI (JP)
Application Number:
PCT/JP2023/015368
Publication Date:
October 26, 2023
Filing Date:
April 17, 2023
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
C07C41/44; C07C43/12
Foreign References:
| KR20100138245A | 2010-12-31 | |||
| CN106748676A | 2017-05-31 | |||
| JP2019500373A | 2019-01-10 | |||
| CN109608311A | 2019-04-12 |
Other References:
ILYIN A A, ET AL.: "THE USE OF TETRAFLUORETHYLENE AND HEXAFLUORPROPYLENE IN THE SYNTHESIS OF PARTLY FLUORINATED ALCOHOLS AND DIALKYL ETHERS", FLUORINE NOTES, vol. 30, no. 05, 1 January 2003 (2003-01-01), US , XP008067989, ISSN: 1053-9697
Attorney, Agent or Firm:
SAEGUSA & PARTNERS (JP)
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