ethyl 2-(4-benzylpiperazin-1-yl)acetate

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

Procedure: Ethyl 4-benzylpiperazineacetate (2.38 g, 9.0 mmol) was added to 3M hydrochloric acid solution(12 ml), refluxed for 2 hours, stirred for 1 day at a room temperature, and then concentrated under reduced pressure. The resulting residue was dissolved in methanol and reconcentrated. The resulting solid was suspended in ethyl ether, filtered and dried under a reduced pressure to give 2.14 g of the titled compound. (Yield 77.4%) refluxed for 2 hours concentrated under reduced pressure The resulting residue was dissolved in methanol filtered dried under a reduced pressure

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

Procedure: Ethyl 4-benzylpiperazineacetate (2.38 g, 9.0 mmol) was added to 3M hydrochloric acid solution(12 ml), refluxed for 2 hours, stirred for 1 day at a room temperature, and then concentrated under reduced pressure. The resulting residue was dissolved in methanol and reconcentrated. The resulting solid was suspended in ethyl ether, filtered and dried under a reduced pressure to give 2.14 g of the titled compound. (Yield 77.4%) refluxed for 2 hours concentrated under reduced pressure The resulting residue was dissolved in methanol filtered dried under a reduced pressure

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

Procedure: 4-Benzylpiperazine(3.3 ml, 18.9 mmol) was added to a solution of ethyl bromoacetate(1 ml, 9.0 mmol) in benzene(9 ml), which was then stirred for 2 hours at a room temperature, diluted with ethyl ether, and washed with saturated NaCl solution. The separated organic layer was dried over anhydrous sodium sulfate and concentrated under reduced pressure to give 2.38 g of the titled compound. (Yield 100%). washed with saturated NaCl solution The separated organic layer was dried over anhydrous sodium sulfate concentrated under reduced pressure

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

Procedure: 4-Benzylpiperazine(3.3 ml, 18.9 mmol) was added to a solution of ethyl bromoacetate(1 ml, 9.0 mmol) in benzene(9 ml), which was then stirred for 2 hours at a room temperature, diluted with ethyl ether, and washed with saturated NaCl solution. The separated organic layer was dried over anhydrous sodium sulfate and concentrated under reduced pressure to give 2.38 g of the titled compound. (Yield 100%). washed with saturated NaCl solution The separated organic layer was dried over anhydrous sodium sulfate concentrated under reduced pressure

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

Procedure: Ethyl 4-benzylpiperazineacetate (2.38 g, 9.0 mmol) was added to 3M hydrochloric acid solution(12 ml), refluxed for 2 hours, stirred for 1 day at a room temperature, and then concentrated under reduced pressure. The resulting residue was dissolved in methanol and reconcentrated. The resulting solid was suspended in ethyl ether, filtered and dried under a reduced pressure to give 2.14 g of the titled compound. (Yield 77.4%) refluxed for 2 hours concentrated under reduced pressure The resulting residue was dissolved in methanol filtered dried under a reduced pressure

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

Procedure: 4-Benzylpiperazine(3.3 ml, 18.9 mmol) was added to a solution of ethyl bromoacetate(1 ml, 9.0 mmol) in benzene(9 ml), which was then stirred for 2 hours at a room temperature, diluted with ethyl ether, and washed with saturated NaCl solution. The separated organic layer was dried over anhydrous sodium sulfate and concentrated under reduced pressure to give 2.38 g of the titled compound. (Yield 100%). washed with saturated NaCl solution The separated organic layer was dried over anhydrous sodium sulfate concentrated under reduced pressure

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

Procedure: Ethyl 4-benzylpiperazineacetate (2.38 g, 9.0 mmol) was added to 3M hydrochloric acid solution(12 ml), refluxed for 2 hours, stirred for 1 day at a room temperature, and then concentrated under reduced pressure. The resulting residue was dissolved in methanol and reconcentrated. The resulting solid was suspended in ethyl ether, filtered and dried under a reduced pressure to give 2.14 g of the titled compound. (Yield 77.4%) refluxed for 2 hours concentrated under reduced pressure The resulting residue was dissolved in methanol filtered dried under a reduced pressure

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

Procedure: 4-Benzylpiperazine(3.3 ml, 18.9 mmol) was added to a solution of ethyl bromoacetate(1 ml, 9.0 mmol) in benzene(9 ml), which was then stirred for 2 hours at a room temperature, diluted with ethyl ether, and washed with saturated NaCl solution. The separated organic layer was dried over anhydrous sodium sulfate and concentrated under reduced pressure to give 2.38 g of the titled compound. (Yield 100%). washed with saturated NaCl solution The separated organic layer was dried over anhydrous sodium sulfate concentrated under reduced pressure