Trifluoroacetic acid → HCID 4741928, compound

Participants

Reaction Steps

Trifluoroacetic acid (2.5 mL) was added to a solution of [4-(4-methoxy-benzenesulfonyl)-piperazin-1-yl]-acetic acid tert-butyl ester (1.48 g, 4 mmol) in dichloromethane (10 mL). The reaction was stirred at room temperature for 3 days. The solvent was removed in vacuo and the residue was triturated with diethyl ether. Filtration yielded the product as a white solid (1.25 g, quant.). 1H NMR (400 MHz, DMSO-d6) δ 7.70 (dt, J=9.6, 2.4 Hz, 2H), 7.21 (dt, J=9.6, 2.4 Hz, 2H), 3.86 (m, 5H), 3.09 (m, 8H).

Provenance & Evidence