4-[(4-chlorophenyl)methyl]-1,3-oxazolidin-2-one

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

Procedure: Diisopropylethylamine (0.78 ml, 4.5 mmol, 2.25 eq) is added to a solution of 2-amino-3-(4-chlorophenyl)propan-1-ol a93 (0.37 g, 2 mmol, 1 eq) in dichloromethane (75 ml). The mixture is cooled (ice bath) and triphosgene a89 (0.30 g, 1 mmol, 0.5 eq) is added. The mixture is stirred overnight at room temperature, washed with water, with 0.1 N aqueous hydrochloric acid, dried over magnesium sulfate and concentrated in vacuo to give 0.47 g of 4-(4-chlorobenzyl)-1,3-oxazolidin-2-one a94 as a yellow oil. This oil is used in the next step without any further purification. is added washed with water, with 0.1 N aqueous hydrochloric acid dried over magnesium sulfate concentrated in vacuo

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

Procedure: Diisopropylethylamine (0.78 ml, 4.5 mmol, 2.25 eq) is added to a solution of 2-amino-3-(4-chlorophenyl)propan-1-ol a93 (0.37 g, 2 mmol, 1 eq) in dichloromethane (75 ml). The mixture is cooled (ice bath) and triphosgene a89 (0.30 g, 1 mmol, 0.5 eq) is added. The mixture is stirred overnight at room temperature, washed with water, with 0.1 N aqueous hydrochloric acid, dried over magnesium sulfate and concentrated in vacuo to give 0.47 g of 4-(4-chlorobenzyl)-1,3-oxazolidin-2-one a94 as a yellow oil. This oil is used in the next step without any further purification. is added washed with water, with 0.1 N aqueous hydrochloric acid dried over magnesium sulfate concentrated in vacuo

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

Procedure: Diisopropylethylamine (0.78 ml, 4.5 mmol, 2.25 eq) is added to a solution of 2-amino-3-(4-chlorophenyl)propan-1-ol a93 (0.37 g, 2 mmol, 1 eq) in dichloromethane (75 ml). The mixture is cooled (ice bath) and triphosgene a89 (0.30 g, 1 mmol, 0.5 eq) is added. The mixture is stirred overnight at room temperature, washed with water, with 0.1 N aqueous hydrochloric acid, dried over magnesium sulfate and concentrated in vacuo to give 0.47 g of 4-(4-chlorobenzyl)-1,3-oxazolidin-2-one a94 as a yellow oil. This oil is used in the next step without any further purification. is added washed with water, with 0.1 N aqueous hydrochloric acid dried over magnesium sulfate concentrated in vacuo