Dichloromethane → HCID 57941180, compound

Participants

Reaction Steps

To a stir bar equipped flask containing 4-(2,5-difluorophenyl)-6-(3-methoxyphenyl)-1,2,3,6-tetrahydropyridne (1-5, 0.6 g, 0.19 mmol) was added dichloromethane (15 mL) followed successively by TEA (0.14 mL, 0.19 mmol), and acetic anhydride (0.06 mL, 0.59 mmol). The resulting solution stirred for 10 min. Water was added (2 mL), and then the reaction was washed with dichloromethane (2×30 mL). The organics were dried over sodium sulfate, filtered, and concentrated under reduced pressure. The crude reside was purified by reverse phase liquid chromatography (0.1% TFA) to give 1-acetyl-4-(2,5-difluorophenyl)-6-(3-methoxyphenyl)-1,2,3,6-tetrahydropyridine (1-6). 1H NMR (300 MHz, CDCl3) δ 7.26 (m, 1H), 6.96 (m, 4H), 6.82 (m, 1H); 6.36 (m, 1H), 6.20 (m, 1H), 3.82 (s, 3H), 3.80 (m, 2H); 3.40 (dt, J=11.9, 4.2 Hz, 1H); 2.74 (m, 1H); 2.42 (dd, J=16.0, 1.0 Hz, 1H), 2.20 (s, 3H); MS 344.1 found, 343.3 (M+H+) required.

Provenance & Evidence