CBS Reductions with a Fluorous Prolinol Immobilized in a Hydrofluoroether Solvent

Autor: Marvin S. Yu, Qianli Chu, Dennis P. Curran
Rok vydání: 2008
Předmět:
Zdroj: Organic Letters. 10:749-752
ISSN: 1523-7052
1523-7060
DOI: 10.1021/ol702778v
Popis: A fluorous prolinol precatalyst bearing only 34 fluorine atoms has been immobilized in the hydrofluoroether solvent HFE-7500. The CBS reduction of acetophenone proceeded rapidly, in high yield and in high ee in the absence of any organic solvent. The organic product was stripped from the HFE-7500 phase with a polar solvent, and the HFE-7500 phase was reused "as is" with satisfactory results through eight runs. This process is an attractive prototype for the large-scale use, recovery, and reuse of fluorous organocatalysts.
Databáze: OpenAIRE