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Title:
METHOD FOR PRODUCING CYCLOBUTENE
Document Type and Number:
WIPO Patent Application WO/2020/137825
Kind Code:
A1
Abstract:
The purpose of the present disclosure is to produce a cyclobutene which contains a halogen atom with high selectivity.　A method for producing a cyclobutene represented by general formula (1) (wherein X1, X2, X3 and X4 may be the same or different, and each represents a hydrogen atom, a halogen atom or a perfluoroakyl group; and Y represents a halogen atom). This method comprises a step for subjecting a cyclobutane represented by general formula (2) (wherein X1, X2, X3, X4 and Y are as defined above; and X5 and X6 may be the same or different, and each represents a hydrogen atom, a halogen atom or a perfluoroakyl group) to an elimination reaction; and the elimination reaction is carried out in a gas phase.

Inventors:
ETOU YUUSUKE (JP)
NAKAMURA SHINGO (JP)
Application Number:
PCT/JP2019/049900
Publication Date:
July 02, 2020
Filing Date:
December 19, 2019
Export Citation:
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Assignee:
DAIKIN IND LTD (JP)
International Classes:
C07C23/06; C07C17/25
Domestic Patent References:
WO2010007968A12010-01-21
Foreign References:
GB844604A1960-08-17
US2891968A1959-06-23
CN107721810A2018-02-23
JP2010126452A2010-06-10
JP2010043034A2010-02-25
Other References:
BUXTON, M. W. ET AL.: "The reaction of highly fluorinated organic compounds. Part V. 1H: 2H-Hexafluorocyclobutane and 1H- Pentafluorocyclobut-1-ene", JOURNAL OF THE CHEMICAL SOCIETY, 1954, pages 1177 - 1179, XP055721537
FULLER, G. ET AL.: "Some isomeric Hexafluorocyclobutanes and Pentafluorocyclobutenes", JOURNAL OF THE CHEMICAL SOCIETY, 1961, pages 3198 - 3203, XP055721540
Attorney, Agent or Firm:
SAEGUSA & PARTNERS (JP)
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