Pyrrolidine → 1-[(4-Bromo-3-fluorophenyl)sulfonyl]pyrrolidine

Participants

Reaction Steps

According to general procedure C, 4-Bromo-3-fluoro-benzenesulfonyl chloride (0.40 g, 1.46 mmol) and pyrrolidine (0.30 mL, 3.65 mmol) were stirred together with dry dichloromethane (5 mL) for 16 hours. 1-[(4-bromo-3-fluorophenyl)sulfonyl]pyrrolidine (0.43 g, 96%) was provided after purification. HRMS: calcd for C10H11BrFNO2S, 306.96779; found (EI, M+.), 306.968. HPLC purity 100.0% at 210-370 nm, 10.3 min.; the Xterra® RP18 column, 3.5μ, 150×4.6 mm column, 1.2 mL/min., 85/15-5/95 (ammonium formate buffer pH=3.5/ACN+MeOH) for 10 min., hold 4 min.

Provenance & Evidence