Methyl acetoacetate → HCID 54721558, compound

Participants

Reaction Conditions

Reaction Steps

The title compound was prepared as described in General Method 1 using 0.22 mL of methyl acetoacetate, 90 mg of NaH 60% dispersion in oil, 1 mL of 2.1M n-butyl lithium in hexane, 500 mg of 3-(3,4-methylenedioxyphenyl)propiophenone and 15 mL of tetrahydrofuran. After addition of the ketone, the reaction was stirred for 15 minutes at 0° C. then allowed to warm to room temperature and stirred for 2 hours. The crude product was triturated from diethyl ether to afford a solid (m.p. 112°-114° C.). 1H NMR (CDCl3) δ2.20-2.28 (m, 2H), 2.37-2.44 (m, 1H), 2.61-2.69 (m, 1H), 2.95 (dd, 2H), 3.32 (dd, 2H), 5.90 (s, 2H), 6.52-6.70 (m, 3H), 7.33-7.44 (m, 5H).

Provenance & Evidence