Title:
５－クロロ－１，１，２，２，３，３，４，４－オクタフルオロペンタンの製造方法及び１－クロロ－２，３，３，４，４，５，５－ヘプタフルオロペンテンの製造方法
Document Type and Number:
Japanese Patent JP7259764
Kind Code:
B2
Abstract:
Provided is an efficient production method that enables production of 5-chloro-1,1,2,2,3,3,4,4-octafluoropentane with high selectivity without the need of a complicated post-treatment process. This production method for 5-chloro-1,1,2,2,3,3,4,4-octafluoropentane comprises a first step for reacting 2,2,3,3,4,4,5,5-octafluoropentanol with thionyl chloride in the presence of at least one nitrogen-containing organic compound selected from the group consisting of N, N-dimethyl formamide, dimethyl acetamide, pyridine, and tetramethyl urea to produce 2,2,3,3,4,4,5,5-octafluoropentane sulfonic acid chloride, and a second step for thermally degrading the 2,2,3,3,4,4,5,5-octafluoropentane sulfonic acid chloride to obtain 5-chloro-1,1,2,2,3,3,4,4-octafluoropentane.
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Inventors:
Mari Ichinogawa
Atsushi Fujimori
Takuya Iwase
Shuichi Okamoto
Atsushi Fujimori
Takuya Iwase
Shuichi Okamoto
Application Number:
JP2019561024A
Publication Date:
April 18, 2023
Filing Date:
December 13, 2018
Export Citation:
Assignee:
AGC Inc.
International Classes:
C07C17/35; C07C17/25; C07C19/10; C07C21/18
Foreign References:
| FR1283897A |
Other References:
RAKHIMOV, A. I. et al.,Polyfluoroalkyl Chlorosulfites as New Polyfluorinating Agents,Russian Journal of Applied Chemistry,2002年,Vol.75, No.7,p.1162-1165,DOI: 10.1023/A:1020788902312,ISSN 1070-4272
RAKHIMOV, A. I. et al.,New Catalytic Synthesis of Polyfluoroalkyl Chlorosulfites,Russian Journal of General Chemistry,2004年,Vol.74, No.5,p.799-800,ISSN 1070-3632, especially p.799
編者 社団法人日本化学会,第4版 実験化学講座19 有機合成I -炭化水素・ハロゲン化合物-,1992年06月05日,p.444-447,全文(特に、第444頁第6、7行目)
ZAPEVALOV, A. Ya. et al.,α,α-Disubstituted polyfluoroalkenes,Zhurnal Organicheskoi Khimii,1988年,Vol.24, No.8,p.1626-1633,ISSN 0514-7492, especially p.1626-1627
ロシア登録特許第2247110号明細書,2005年02月27日
RAKHIMOV, A. I. et al.,New Catalytic Synthesis of Polyfluoroalkyl Chlorosulfites,Russian Journal of General Chemistry,2004年,Vol.74, No.5,p.799-800,ISSN 1070-3632, especially p.799
編者 社団法人日本化学会,第4版 実験化学講座19 有機合成I -炭化水素・ハロゲン化合物-,1992年06月05日,p.444-447,全文(特に、第444頁第6、7行目)
ZAPEVALOV, A. Ya. et al.,α,α-Disubstituted polyfluoroalkenes,Zhurnal Organicheskoi Khimii,1988年,Vol.24, No.8,p.1626-1633,ISSN 0514-7492, especially p.1626-1627
ロシア登録特許第2247110号明細書,2005年02月27日
Attorney, Agent or Firm:
Patent Attorney Corporation Taiyo International Patent Office