Dimesityl ammonium penta; fluorobenzene sulfonate
| Dimesityl ammonium penta; fluorobenzene sulfonate | |
|---|---|
 | |
| dimesitylammonium pentafluorobenzenesulfonate | |
| Identification information | |
| CAS registration number | 850,629-65-1 |
| PubChem | 53428379 |
| |
| Characteristic | |
| Chemical formula | C24H24F5NO3S |
| Molar mass | 501.509 g/mol |
| The appearance | Crystalline powder of the white |
| I can put a case, the data without the special mention for normal temperature (25 degrees Celsius), the ordinary pressure (100 kPa). | |
Dimesityl ammonium penta; with fluorobenzene sulfonate (dimesitylammonium pentafluorobenzenesulfonate) with diaryl amine penta;, with salt of the fluorobenzene sulphonic acid, is a condensation catalyst of the esterification (condensation agent).
In 2005, Kazuaki Ishihara and others developed it [1]. It is not necessary to remove water to by-produce by esterification, and a combination of wide carboxylic acid and alcohol is possible.
Table of contents
Summary
Dimesityl ammonium penta; fluorobenzene sulfonate does the structure that quantity is high in, and raise the hydrophobicity of the active center. As a result, I will keep away H2O of the by-product occurring by a condensation reaction, and it is thought that I work to suppress the hydrolysis that is inverse reaction.
References
- ^ Ishihara, K,; Nakagawa, S.; Sakakura, A. "Bulky Diarylammonium Arenesulfonates as Selective Esterification Catalysts". J. Am. Chem. Soc. 2005, 127, 4168–4169. doi: 10.1021/ja050223v
Outside link
Allied item
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