反应详情

As shown in step 4-iv of Scheme 4, to a stirred solution of 2-(2-(2-methoxyphenyl)propyl)isoindoline-1,3-dione (363 mg, 1.23 mmol) in MeOH (4.0 mL) was added hydrazine (39.4 mg, 38.6 μL, 1.23 mmol) and the reaction was stirred for 18 hours. The precipitate that had formed was filtered, washed with MeOH, and the filtrate concentrated under reduced pressure to give 2-(methoxyphenyl)-1-propanamine as a light yellow oil (Compound 2011, 144 mg, 71% yield): 1H NMR (CDCl3) δ 7.27-7.13 (m, 2H), 6.95 (ddd, J=18.2, 12.3, 4.6 Hz, 2H), 3.84 (s, 3H), 3.39-3.18 (m, 1H), 2.86 (qd, J=12.7, 6.8 Hz, 2H), 1.44 (s, 2H), 1.24 (d, J=7.0 Hz, 3H).

1. customThe precipitate that had formed
2. filtrationwas filtered
3. washwashed with MeOH
4. concentrationthe filtrate concentrated under reduced pressure