反応 #3305382
関連文献 (1)
openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US08017602B2
反応条件: temp:80.01; pressure:0.00; stir:; See reaction.notes.procedure_details.
実験手順: Methanesulfonic acid (0.4 mL) was added to a mixture of 1-bromo-2-fluoro-3-(2-methoxyvinyl)benzene [Example 16, Step i)] (1.8 g), tetrahydrofuran (15 mL) and water (1.5 mL) and sealed into a microwave tube. The reaction was heated to 80° C., over a period of 90 min in the microwave reactor. Sodium bicarbonate (654 mg) was added portionwise and the mixture was stirred for 10 min. Sodium borohydride (295 mg) was added portionwise (gas evolution) and the mixture was stirred for 30 min. The reaction mixture was poured into saturated sodium hydrogen carbonate solution and extracted with DCM (3×30 mL). The organic was dried over magnesium sulfate, filtered and evaporated to afford crude product. The crude product was purified by flash silica chromatography, elution gradient 0 to 30% ethyl acetate in isohexane to afford the subtitled compound (1.26 g) as a liquid. 1H NMR (300 MHz, CDCl3) δ 7.47-7.40 (m, 1H), 7.23-7.16 (m, 1H), 6.97 (t, J=7.8 Hz, 1H), 3.88 (q, J=6.2 Hz, 2H), 2.95 (t, J=6.5 Hz, 2H), 1.43 (t, J=5.7 Hz, 1H). sealed into a microwave tube the mixture was stirred for 30 min extracted with DCM (3×30 mL) The organic was dried over magnesium sulfate filtered evaporated to afford crude product The crude product was purified by flash silica chromatography, elution gradient 0 to 30% ethyl acetate in isohexane
ソース ID: ord-7ea2f05b8ad648debe895085d510433a