Hydrochloric Acid → 1-Cyclohexyl-4,4,4-trifluoro-butane-1,3-dione

참여 물질

반응 단계

To a stirred solution of cyclohexylmethylketone (2.75 g, 21.8 mmol) in DME (200 mL) was added ethyl trifluoroacetate (7.79 ml, 65.4 mmol) and sodium methoxide (7.71 g, 131 mmol), and the resulting reaction mixture was stirred at room temperature overnight. EtOAc (500 ml) and water (50 ml) were added, and the pH of the aqueous layer was adjusted to 6 by addition of 1 N HCl solution. The organic layer was washed with brine (50 ml), dried over MgSO4, and concentrated in vacuo to give the title compound in quantitative yield. This was used for the next coupling step without further purification.

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