Hydrochloric Acid → 1'-(4-phenoxybenzoyl)-1,3'-bipyrrolidine Hydrochloride

Participants

Reaction Steps

A stirred mixture of the HCl salt of 3-(pyrrolidino)pyrrolidine (0.44 g, 2.1 mmol) and 4-phenoxy benzoic acid (0.34 g, 1.6 mmol) in CH2Cl2 is treated with 0.85 mL of triethylamine at room temperature. The reaction mixture is treated with solid benzotriazol-1-yl-oxytripyrrolidinophosphonium hexafluorophosphate (1.2 g, 2.4 mmol), stirred overnight under nitrogen, diluted with CH2Cl2, washed sequentially with water and brine, dried over MgSO4 and concentrated in vacuo. The resultant residue is chromatographed and treated with HCl in ether to afford the title compound as a white solid, identified by NMR and MS analyses.

Provenance & Evidence