3-bromo-4,5-dihydro-1,2-oxazole-5-carboxamide

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

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

Procedure: A mixture of 3-bromo-4,5-dihydroisoxazole-5-carboxamide (1.5 g, 7.77 mmol), 4-(2-bromo-5-fluorophenoxy)piperidine (2.56 g, 9.33 mmol) and N,N-diisopropylethylamine (3.5 mL, 20.04 mmol) in ethanol (15 mL) was heated at reflux temperature overnight. Solvent was then removed in vacuo. The residue was suspended in water and stirred for 1 h. The solid was collected, washed with water and Et2O. Drying under vacuum gave the title compound as a light brown powder. was heated at reflux temperature overnight Solvent was then removed in vacuo The solid was collected washed with water and Et2O Drying under vacuum

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

Procedure: A mixture of 3-bromo-4,5-dihydroisoxazole-5-carboxamide (1.5 g, 7.77 mmol), 4-(2-bromo-5-fluorophenoxy)piperidine (2.56 g, 9.33 mmol) and N,N-diisopropylethylamine (3.5 mL, 20.04 mmol) in ethanol (15 mL) was heated at reflux temperature overnight. Solvent was then removed in vacuo. The residue was suspended in water and stirred for 1 h. The solid was collected, washed with water and Et2O. Drying under vacuum gave the title compound as a light brown powder. was heated at reflux temperature overnight Solvent was then removed in vacuo The solid was collected washed with water and Et2O Drying under vacuum

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

Procedure: A mixture of ethyl 3-bromo-4,5-dihydroisoxazole-5-carboxylate (6.2 g, 28 mmol) and a solution of 2M ammonia in MeOH (56 mL) was stirred at room temperature for 1-2 h. Volatile materials were removed in vacuo to give the crude title compound as a white solid. Volatile materials were removed in vacuo

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

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

Procedure: A mixture of ethyl 3-bromo-4,5-dihydroisoxazole-5-carboxylate (6.2 g, 28 mmol) and a solution of 2 M ammonia in MeOH (56 mL) was stirred at room temperature for 1 to 2 hours. Volatile materials were removed in vacuo to give the crude title compound as a white solid. Volatile materials were removed in vacuo

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

Procedure: A mixture of 3-bromo-4,5-dihydroisoxazole-5-carboxamide (1.5 g, 7.77 mmol), 4-(2-bromo-5-fluorophenoxy)piperidine (2.56 g, 9.33 mmol) and N,N-diisopropylethylamine (3.5 mL, 20.04 mmol) in ethanol (15 mL) was heated at reflux temperature overnight. Solvent was then removed in vacuo. The residue was suspended in water and stirred for 1 h. The solid was collected, washed with water and Et2O. Drying under vacuum gave the title compound as a light brown powder. was heated at reflux temperature overnight Solvent was then removed in vacuo The solid was collected washed with water and Et2O Drying under vacuum

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

Procedure: A mixture of ethyl 3-bromo-4,5-dihydroisoxazole-5-carboxylate (6.2 g, 28 mmol) and a solution of 2M ammonia in MeOH (56 mL) was stirred at room temperature for 1-2 h. Volatile materials were removed in vacuo to give the crude title compound as a white solid. Volatile materials were removed in vacuo