Title:
ARYLBIS (PERFLUOROALKYLSULFONYL) METHANE, METAL SALT OF THE SAME, AND PROCESSES FOR PRODUCING THESE
Document Type and Number:
WIPO Patent Application WO/2002/048098
Kind Code:
A1
Abstract:
A process for highly efficiently producing various arylbis(perfluoroalkylsulfonyl)methanes which have a bulky aryl group or electron-attracting aryl group and which have conventionally been regarded as difficult to synthesize; a novel arylbis(perfluoroalkylsulfonyl)methane widely applicable as a catalyst for asymmetric synthesis, various functional materials, etc.; metal salts of these; and an excellent catalyst. An arylhalomethane is reacted with sodium trifluoromethanesulfinate. The arylmethyltrifluorocarbon yielded is reacted with t-BuLi, etc. The arylmethyltrifluorocarbon lithium salt obtained is reacted with trifluoromethanesulfonic anhydride. Thus, an arylbis(trifluoromethylsulfonyl)methane, e.g., pentafluorophenylbis(trifuryl)methane or {4-(pentafluorophenyl)-2,3,5,6-tetrafluorophenyl}bis(trifuryl)methane, is obtained in high yield.
Inventors:
ISHIHARA KAZUAKI (JP)
YAMAMOTO HISASHI (JP)
YAMAMOTO HISASHI (JP)
Application Number:
PCT/JP2001/010978
Publication Date:
June 20, 2002
Filing Date:
December 14, 2001
Export Citation:
Assignee:
JAPAN SCIENCE & TECH CORP (JP)
ISHIHARA KAZUAKI (JP)
YAMAMOTO HISASHI (JP)
ISHIHARA KAZUAKI (JP)
YAMAMOTO HISASHI (JP)
International Classes:
B01J31/02; B01J31/12; C07C45/69; C07C67/08; C07C317/10; (IPC1-7): C07C317/10; B01J31/22; C07C45/69; C07C47/445; C07C67/08; C07C69/78; C07C315/00
Foreign References:
| JPH03254697A | 1991-11-13 | |||
| US4049861A | 1977-09-20 |
Other References:
ZHU, SHIZHENG: "Synthesis and reactions of phenyliodonium bis(perfluoroalkanesulfonyl) methides", HETEROAT. CHEM., vol. 5, no. 1, 1994, pages 9 - 18, XP002909424
ZHU, SHIZHENG: "A new synthetic route to arylbis(perfluoroalkanesulfonyl)-methanes; structures of tolyldiazonium bis(trifluoromethanesulfonyl)methide and 4-nitrophenylhydrazonobis(trifluoromethanesulfonyl)methane", J. FLUORINE CHEM., vol. 64, no. 1-2, 1993, pages 47 - 60, XP002051636
LISTON, DAVID J. ET AL.: "Observations on silver salt metathesis reactions with very weakly coordinating anions", J. AM. CHEM. SOC., vol. 111, no. 17, 1989, pages 6643 - 6648, XP002909425
See also references of EP 1344772A4
ZHU, SHIZHENG: "A new synthetic route to arylbis(perfluoroalkanesulfonyl)-methanes; structures of tolyldiazonium bis(trifluoromethanesulfonyl)methide and 4-nitrophenylhydrazonobis(trifluoromethanesulfonyl)methane", J. FLUORINE CHEM., vol. 64, no. 1-2, 1993, pages 47 - 60, XP002051636
LISTON, DAVID J. ET AL.: "Observations on silver salt metathesis reactions with very weakly coordinating anions", J. AM. CHEM. SOC., vol. 111, no. 17, 1989, pages 6643 - 6648, XP002909425
See also references of EP 1344772A4
Attorney, Agent or Firm:
Hirota, Masanori (8-5 Akasaka 2-chome Minato-ku, Tokyo, JP)
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