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Patent Searching and Data


Title:
PROCESS FOR PRODUCING PERFLUOROALKYNE COMPOUND
Document Type and Number:
WIPO Patent Application WO/2020/075728
Kind Code:
A1
Abstract:
Through this method in which: a catalyst is included which is any of (a) a catalyst including a prescribed element, (b) a catalyst including at least two prescribed elements, (c) a prescribed fluorinated metal oxide having a pore volume in a prescribed range, (d) a metal oxide fluorinated by a prescribed compound, and (e) a catalyst obtained by fluorinating a prescribed metal oxide having a pore volume in a prescribed range; using a catalyst including a prescribed element, the time of contact between the catalyst and a perfluoroalkadiene compound is set to 30 seconds or less; or the water content in the reaction system is set to a prescribed range in at least a portion of the process from the reaction start to the reaction end, a production method can be obtained in which the conversion rate of reaction is high, a perfluoroalkyne compound can be obtained with high selectivity, and perfluoroalkene compounds are not prone to be formed as byproducts, and degradation of the catalyst can also be reduced.

Inventors:
ETOU YUUSUKE (JP)
NAKAMURA SHINGO (JP)
Application Number:
JP2019/039725
Publication Date:
April 16, 2020
Filing Date:
October 08, 2019
Export Citation:
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Assignee:
DAIKIN IND LTD (JP)
International Classes:
C07C17/358; C07C17/35; C07C21/22; C07C23/06; C07B61/00
Foreign References:
JP2014058488A2014-04-03
JP2012001448A2012-01-05
JP2010523635A2010-07-15
JP2018090512A2018-06-14
JP2012162486A2012-08-30
JP2015205842A2015-11-19
Other References:
V. A. PETROV ET AL.: "Electrophilic reactions of fluorocarbons under the act ion of alminum chlorof luoride, a potent Lewis acid.", JOURNAL OF FLUORINE CHEMISTRY, vol. 77, 1996, pages 139 - 142, XP004020383
WILLIAM R. DOLBIER ET AL.: "The electrocyclic interconversion of perfluoro-3-methylcyclobutene with Z- and E-perfluoro-1, 3-pentadiene", TETRAHEDRON LETTERS, vol. 27, no. 37, 1986, pages 4387 - 4398, XP055701502
Attorney, Agent or Firm:
SAEGUSA & PARTNERS (JP)
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