C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 317/10 (2006.01) B01J 31/02 (2006.01) B01J 31/22 (2006.01) C07C 45/69 (2006.01) C07C 47/445 (2006.01) C07C 67/08 (2006.01) C07C 69/78 (2006.01) C07C 315/00 (2006.01) C07F 1/02 (2006.01) C07F 1/10 (2006.01) C07F 5/00 (2006.01)
Patent
CA 2431616
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, such as represented by formula [1] (see formula 1) widely applicable as a catalyst for asymmetric synthesis, various functional materials, etc.; metal salts of these, such as represented by formula [6] (see formula 6) 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 trifluoromethane sulfonic 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.
L'invention concerne un procédé de production hautement efficace de divers arylbis(perfluoroalkylsulfonyl)méthanes présentant un groupe aryle volumineux ou un groupe aryle attirant les électrons et lesquels sont généralement considérés comme étant difficiles à synthétiser; un nouveau arylbis(perfluoroalkylsulfonyl)méthane largement applicable en tant que catalyseur de synthèse asymétrique, divers matériaux fonctionnels, etc.; les sels métalliques de ceux-ci; et un excellent catalyseur. Un arylhalométhane est mis à réagir avec du trifluorométhanesulfinate de sodium. L'arylméthyltrifluorocarbone produit est mis à réagir avec t-BuLi, etc. Le sel de lithium d'arylméthyltrifluorocarbone obtenu est mis à réagir avec un anhydride trifluorométhanesulfonique. Ainsi, un arylbis(trifluorométhylsulfonyl)méthane, par exemple, un pentafluorophénylbis(trifuryl)méthane ou {4-(pentafluorophényl)-2,3,5,6-tétrafluorophényl}bis(trifuryl)méthane est obtenu à haut rendement.
Ishihara Kazuaki
Yamamoto Hisashi
Japan Science And Technology Agency
Japan Science And Technology Corporation
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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