Title:
METHOD FOR PRODUCING FLUORINE-CONTAINING PROPENE
Document Type and Number:
WIPO Patent Application WO/2019/230456
Kind Code:
A1
Abstract:
The present invention provides a production method for efficiently obtaining a fluorine-containing propene having a -CF= structure with high yield with use of a fluorine-containing propane that has a -CF2- structure in each molecule as a starting material. A method for producing a fluorine-containing propene, by which a fluorine-containing propene represented by formula (B) is obtained by subjecting a fluorine-containing chlorine-containing propane represented by formula (A) to a defluorination dechlorination reaction in the presence of a reducing agent that is composed of at least one element selected from among alkaline earth metals and transition metals.
Formula (A): CY3-CF2-CClX2
Formula (B): CY3-CF=CX2
In formula (A), each one of two X moieties independently represents F, Cl or H; and each one of three Y moieties independently represents F or H, excluding the cases where both of the two X moieties represent H. In formula (B), the X and Y moieties are as defined in formula (A).
Inventors:
NIHEI TOSHIFUMI (JP)
TAMITSUJI CHIKAYA (JP)
TAKEUCHI YU (JP)
TAMITSUJI CHIKAYA (JP)
TAKEUCHI YU (JP)
Application Number:
PCT/JP2019/019762
Publication Date:
December 05, 2019
Filing Date:
May 17, 2019
Export Citation:
Assignee:
AGC INC (JP)
International Classes:
C07C17/23; C07C21/18
Domestic Patent References:
| WO2008053811A1 | 2008-05-08 | |||
| WO2005023734A1 | 2005-03-17 |
Foreign References:
| JPS63162633A | 1988-07-06 | |||
| JPH11335309A | 1999-12-07 | |||
| JP2005525419A | 2005-08-25 | |||
| JPH04145033A | 1992-05-19 | |||
| JPH04117335A | 1992-04-17 | |||
| JPH01207249A | 1989-08-21 |
Other References:
SHI, GUO-QIANG ET AL.: "delta, epsilon -Unsaturated beta , beta -Difluoro- a -keto Esters: Novel Synthesis and Utility as Precursors of beta , beta -Difluoro- a -amino Acids", J. ORG. CHEM., vol. 60, no. 20, 1995, pages 6289 - 6295, XP055647659, DOI: 10.1021/jo00125a013
Attorney, Agent or Firm:
T.S. PARTNERS et al. (JP)
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