1-[4-(2-hydroxypropyl)piperazin-1-yl]propan-2-ol

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

Procedure: Dissolve acetylsalicylic anhydride (17.1 g; 0.05 moles) in an apolar organic solvent represented for example by ethyl acetate; add 1,4-bis-(2-hydroxypropyl)piperazine (5.06 g; 0.025 moles) to the solution, and heat up to the boiling point until the reaction is completed. After cooling at room temperature, wash the reaction mixture with a 5 percent aqueous solution of potassium carbonate, and then with water. Anhydrify the organic phase (K2CO3), filter, and treat it with anhydrous hydrochloric acid dissolved in diethylether causing by this procedure the precipitation of the raw product that, after collection and drying, can be recrystallized from a low molecular weight alcohol. wash the reaction mixture with a 5 percent aqueous solution of potassium carbonate Anhydrify the organic phase (K2CO3), filter treat it with anhydrous hydrochloric acid dissolved in diethylether causing by this procedure the precipitation of the raw product that after collection drying can be recrystallized from a low molecular weight alcohol

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

Procedure: Dissolve acetylsalicylic anhydride (17.1 g; 0.05 moles) in an apolar organic solvent represented for example by ethyl acetate; add 1,4-bis-(2-hydroxypropyl)piperazine (5.06 g; 0.025 moles) to the solution, and heat up to the boiling point until the reaction is completed. After cooling at room temperature, wash the reaction mixture with a 5 percent aqueous solution of potassium carbonate, and then with water. Anhydrify the organic phase (K2CO3), filter, and treat it with anhydrous hydrochloric acid dissolved in diethylether causing by this procedure the precipitation of the raw product that, after collection and drying, can be recrystallized from a low molecular weight alcohol. wash the reaction mixture with a 5 percent aqueous solution of potassium carbonate Anhydrify the organic phase (K2CO3), filter treat it with anhydrous hydrochloric acid dissolved in diethylether causing by this procedure the precipitation of the raw product that after collection drying can be recrystallized from a low molecular weight alcohol

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

Procedure: Dissolve acetylsalicylic anhydride (17.1 g; 0.05 moles) in an apolar organic solvent represented for example by ethyl acetate; add 1,4-bis-(2-hydroxypropyl)piperazine (5.06 g; 0.025 moles) to the solution, and heat up to the boiling point until the reaction is completed. After cooling at room temperature, wash the reaction mixture with a 5 percent aqueous solution of potassium carbonate, and then with water. Anhydrify the organic phase (K2CO3), filter, and treat it with anhydrous hydrochloric acid dissolved in diethylether causing by this procedure the precipitation of the raw product that, after collection and drying, can be recrystallized from a low molecular weight alcohol. wash the reaction mixture with a 5 percent aqueous solution of potassium carbonate Anhydrify the organic phase (K2CO3), filter treat it with anhydrous hydrochloric acid dissolved in diethylether causing by this procedure the precipitation of the raw product that after collection drying can be recrystallized from a low molecular weight alcohol