tert-butyl N-[2-(benzenesulfonyl)ethyl]carbamate

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

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

Procedure: The sulfone from Step F (1.20 g, 4.21 mmol) was dissolved in ethyl acetate (10 mL). The solution was saturated with hydrogen chloride gas and stirred for 1 hour, then concentrated in vacuo. The residue was partitioned between methylene chloride (10 mL) and water (10 mL). The layers were separated and the aqueous layer was washed with methylene chloride (3×10 mL) and concentrated in vacuo to provide the title compound as a white solid which was sufficiently pure for use in the next step. concentrated in vacuo The residue was partitioned between methylene chloride (10 mL) and water (10 mL) The layers were separated the aqueous layer was washed with methylene chloride (3×10 mL) concentrated in vacuo

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

Procedure: The sulfone from Step F (1.20 g, 4.21 mmol) was dissolved in ethyl acetate (10 mL). The solution was saturated with hydrogen chloride gas and stirred for 1 hour, then concentrated in vacuo. The residue was partitioned between methylene chloride (10 mL) and water (10 mL). The layers were separated and the aqueous layer was washed with methylene chloride (3×10 mL) and concentrated in vacuo to provide the title compound as a white solid which was sufficiently pure for use in the next step. concentrated in vacuo The residue was partitioned between methylene chloride (10 mL) and water (10 mL) The layers were separated the aqueous layer was washed with methylene chloride (3×10 mL) concentrated in vacuo

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

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

Procedure: The sulfone from Step F (1.20 g, 4.21 mmol) was dissolved in ethyl acetate (10 mL). The solution was saturated with hydrogen chloride gas and stirred for 1 hour, then concentrated in vacuo. The residue was partitioned between methylene chloride (10 mL) and water (10 mL). The layers were separated and the aqueous layer was washed with methylene chloride (3×10 mL) and concentrated in vacuo to provide the title compound as a white solid which was sufficiently pure for use in the next step. concentrated in vacuo The residue was partitioned between methylene chloride (10 mL) and water (10 mL) The layers were separated the aqueous layer was washed with methylene chloride (3×10 mL) concentrated in vacuo