Methyl 3-cyano-2-(4-fluorophenyl)propanoate → 3-(4-Fluorophenyl)pyrrolidin-2-one

Participants

Reaction Steps

Methyl 3-cyano-2-(4-fluorophenyl)propanoate (2.09 g, 10.09 mmol; Example 189A) and 7 M NH3-methanol (100 mL) were added to Raney® nickel, solvent washed (20.90 g, 356 mmol) in a 250 mL stainless steel pressure bottle and stirred for 17 hours under hydrogen at 30 psi and room temperature. The mixture was filtered through a nylon membrane and concentrated to give the title compound. 1H NMR (300 MHz, CDCl3) δ 7.36-7.16 (m, 2H), 7.12-6.94 (m, 2H), 6.04 (s, 1H), 3.61 (t, J=9.2, 1H), 3.54-3.39 (m, 2H), 2.71-2.53 (m, 1H), 2.23 (ddd, J=8.4, 12.9, 17.7, 1H); MS (ESI+) m/z 179.9 (M+H)+.

Provenance & Evidence