Reaction of Phenyl-1,2-Epoxypropane with Fluorosulfuric Acid
J. Org. Chem. 46, 2920-2923 (1981)
To 6 mL of FSO3H cooled in an ice-bath was added 2.5 g of propenylbenzene epoxide dropwise in 50 min. The black reaction mixture was carefully added to ice in the presence of 200 mL of CHCl3. After extraction of the aqueous phase, it was saturated with NaCl and extracted with 200 mL of CHCl3. The combined organic extracts were washed with saturated NaCl solution (3x200 mL), dried over MgSO4, filtered, and concentrated under vacuum to yield 2.2 g (88%) of phenyl-2-propanone as an oil.