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DOI: 10.1055/s-2002-32965
A Fluorous Super Brønsted Acid Catalyst: Application to Fluorous Catalysis without Fluorous Solvents
Publication History
Publication Date:
25 July 2002 (online)
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Abstract
The preparation of a fluorous super Brønsted acid catalyst, 4-(1H,1H-perfluorotetradecanoxy)-2,3,5,6-tetrafluorophenylbis(trifluoromethanesulfonyl)methane (3d), is described. The fluorous catalyst 3d can be recycled by using liquid/solid phase separation without fluorous solvents. A perfluorocarbon solvent is not essential for fluorous biphasic catalysis.
Key words
Brønsted acid - fluorous catalyst - ponytail - fluorous biphasic catalysis - superacid
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References
In the case of the esterification, the resultant solution was concentrated under reduced pressure, and the crude compounds were diluted in hexane to precipitate 3d. Thus, 3d was recovered by filtration.