PRODUCTION METHOD FOR 1-CHLORO-2,3,3,4,4,5,5-HEPTAFLUOROPENTENE

Title:

PRODUCTION METHOD FOR 1-CHLORO-2,3,3,4,4,5,5-HEPTAFLUOROPENTENE

Document Type and Number:

WIPO Patent Application WO/2019/124219

Kind Code:

A1

Abstract:

Provided is an efficient HCFO-1437dycc production method for producing HCFO-1437dycc with a high yield at a high selective rate through an industrially advantageous process by using easily available raw materials. This production method for 1-chloro-2,3,3,4,4,5,5-heptafluoropentene is characterized by causing 5-chloro-1,1,2,2,3,3,4,4-octafluoropentane (HCFC-448occc) to undergo defluorination and hydrogenation in an aqueous solution of a base to obtain 1-chloro-2,3,3,4,4,5,5-heptafluoropentene (HCFO-1437dycc).

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Inventors:

FUJIMORI ATSUSHI (JP)
ICHINOKAWA MARI (JP)
IWASE TAKUYA (JP)
OKAMOTO HIDEKAZU (JP)

Application Number:

PCT/JP2018/045928

Publication Date:

June 27, 2019

Filing Date:

December 13, 2018

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Assignee:

AGC INC (JP)

International Classes:

C07C17/25; C07C21/18; C07B61/00

Domestic Patent References:

WO2017018412A1	2017-02-02
WO2016136744A1	2016-09-01

Other References:

ZAPEVALOV, A. YA. ET AL.: "alpha, alpha-Disubsti tuted polyfluoroalkenes", ZHURNAL ORGANICHESKOI KHIMII, vol. 24, no. 8, 1988, pages 1626 - 1633, ISSN: 0514-7492

Attorney, Agent or Firm:

SAKURA PATENT OFFICE, P.C. (JP)

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