Title:
METHOD FOR PRODUCING FLUOROALKYNE COMPOUND
Document Type and Number:
WIPO Patent Application WO/2022/230589
Kind Code:
A1
Abstract:
A method for producing a fluoroalkyne compound represented by the general formula R1C≡CR2 (1) [wherein R1 and R2 are the same or different and represent a fluorine atom or a fluoroalkyl group], the method comprising a step in which a fluoroalkane compound represented by the general formula R1CHX1CFX2R2 (2) [wherein R1 and R2 are the same as described above and X1 and X2 are such that X1 is a fluorine atom and X2 is a hydrogen atom or that X1 is a hydrogen atom and X2 is a fluorine atom] is subjected to a dehydrofluorination reaction in the presence of an ether solvent, the method satisfying that (I) the fluoroalkyl group is a C1-C4 fluoroalkyl group and/or (II) the ether solvent is a chain ether compound and the dehydrofluorination reaction is conducted in the presence of both a solvent comprising the chain ether compound and one or more bases comprising a hydroxide and/or an alkoxide of an alkali metal and/or an alkaline-earth metal. By this production method, a fluoroalkyne compound can be efficiently synthesized from a fluoroalkane compound.
More Like This:
| WO/2013/055722 | PROCESS FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE |
| WO/2009/125199 | PROCESS FOR THE PREPARATION OF 2, 3, 3, 3-TETRAFLUOROPROPENE |
Inventors:
ETOU YUUSUKE (JP)
NAKAMURA SHINGO (JP)
NAKAMURA SHINGO (JP)
Application Number:
PCT/JP2022/016193
Publication Date:
November 03, 2022
Filing Date:
March 30, 2022
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
C07C17/25; C07C21/22; C09K13/00
Domestic Patent References:
| WO2020171011A1 | 2020-08-27 | |||
| WO2008132964A1 | 2008-11-06 |
Foreign References:
| JP2019172659A | 2019-10-10 |
Other References:
TETRAHEDRON, vol. 44, no. 10, 1988, pages 2865 - 2874
Attorney, Agent or Firm:
SAEGUSA & PARTNERS (JP)
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