反应详情

温度

90 °C

Methyl acrylate (2 g), triethylamine (2.35 g) and palladium acetate (0.05 g) was added to 2-cyano-5-iodobenzo[b]thiophene (4.8 g) in DMF (25 ml) and the mixture was stirred under argon at 90° C. for 30 minutes. The mixture was allowed to cool and then added to water (50 ml). The solid which precipitated was collected by filtration and dissolved in chloroform. Activated charcoal was added and the mixture filtered and the filtrate dried (MgSO4). Solvent was removed by evaporation to give methyl3-(2-cyanobenzo[b]thiophen-5-yl)acrylate (2.5 g); NMR (d6 -DMSO): 3.75 (s, 3H), 6.7 (d, 1H), 7.8 (d, 1H), 8.0 (dd, 1H), 8.2 (d, 1H), 8.3 (d, 1H), 8.85 (s, 1H).

1. temperatureto cool
2. customThe solid which precipitated
3. filtrationwas collected by filtration
4. dissolutiondissolved in chloroform
5. additionActivated charcoal was added
6. filtrationthe mixture filtered
7. dry with materialthe filtrate dried (MgSO4)
8. customSolvent was removed by evaporation