1-(2-furyl)-1-propanone

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Hydroxylamine hydrochloride (3.3 g, 47.8 mmol) and sodium acetate (3.9 g, 47.8 mmol) were added to 20 mL of methanol and the resulting white slurry was stirred at room temperature for 30 min. 1-(Furan-2-yl)propan-1-one (5.4 g, 43.5 mmol) was added and the mixture was stirred at room temperature for 20 hours. Water (20 mL) was added and the product was extracted with EtOAc and the organic layer was washed with saturated NaHCO3 solution and dried over MgSO4. The solvent was evaporated in vacuo to give 6.1 g of the title compound. the mixture was stirred at room temperature for 20 hours the product was extracted with EtOAc the organic layer was washed with saturated NaHCO3 solution dried over MgSO4 The solvent was evaporated in vacuo

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Hydroxylamine hydrochloride (3.3 g, 47.8 mmol) and sodium acetate (3.9 g, 47.8 mmol) were added to 20 mL of methanol and the resulting white slurry was stirred at room temperature for 30 min. 1-(Furan-2-yl)propan-1-one (5.4 g, 43.5 mmol) was added and the mixture was stirred at room temperature for 20 hours. Water (20 mL) was added and the product was extracted with EtOAc and the organic layer was washed with saturated NaHCO3 solution and dried over MgSO4. The solvent was evaporated in vacuo to give 6.1 g of the title compound. the mixture was stirred at room temperature for 20 hours the product was extracted with EtOAc the organic layer was washed with saturated NaHCO3 solution dried over MgSO4 The solvent was evaporated in vacuo

Conditions: temp:50.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: In 50 ml of toluene were dissolved 3.7 g (0.05 mole) of propionic acid and 10.26 g (0.06 mole) of monochloroacetic anhydride. To the resulting solution were added 5.36 g (0.065 mole) of 2-methylfuran and 0.71 g of boron trifluoride-diethyl ether complex and the resulting mixture was then stirred at 50° C. for 7 hours. After completion of the reaction, the reaction solution was cooled and washed successively with 5% aqueous sodium carbonate solution and water. The organic layer was concentrated under reduced pressure and the resulting concentrated residue was then purified by silica gel-filled column chromatography to obtain 2.96 g of 2-propionylfuran. After completion of the reaction the reaction solution was cooled washed successively with 5% aqueous sodium carbonate solution and water The organic layer was concentrated under reduced pressure the resulting concentrated residue was then purified by silica gel- filled column chromatography