反应详情

Dowtherm was heated to 250° C., methyl 3-(4-bromophenylamino)-2-(cyclopropanecarbonyl)acrylate (24 g, 74.1 mmol) was added portionwise and upon complete addition the reaction mixture was stirred for 20 min. The reaction mixture was cooled to room temperature, diluted with 2:1 hexanes/diethyl ether and filtered to afford the desired product (9.71 g, 45%) as an off-white solid: 1H NMR (300 MHz, DMSO-d6) δ 12.65 (s, 1H), 8.51 (s, 1H), 8.32 (d, J=2.3 Hz, 1H), 7.89 (dd, J=8.8, 2.3 Hz, 1H), 7.62 (d, J=8.8 Hz, 1H), 3.73-3.49 (m, J=7.5, 5.0 Hz, 1H), 1.15-0.76 (m, 4H).

1. filtrationfiltered