反应详情

温度

130 °C

Add PdCl2(PPh3)2 (0.07 g, 0.09 mmol) and Sn(CH3)4 (0.34 mL, 0.44 g, 2.48 mmol) to (R,R)—N-[4-bromo-3-(4-ethoxyphenyl)isothiazol-5-yl]-2-methylcyclopropane-carboxamide (0.24 g, 0.62 mmol) in DMF (1 mL) and stir the reaction mixture at 130° C. in a sealed tube overnight. Dilute with EtOAc (100 mL) and brine (100 mL). Collect the organic phase, dry (MgSO4), and evaporate. Filter over silica gel and wash with EtOAc. Evaporate and crystallize from EtOAc/hexane to afford (R,R)—N-[3-(4-ethoxyphenyl)-4-methylisothiazol-5-yl]-2-methylcyclopropanecarboxamide. Yield: 81.7%.

1. customCollect the organic phase
2. dry with materialdry (MgSO4)
3. customevaporate
4. filtrationFilter over silica gel
5. washwash with EtOAc
6. customEvaporate
7. customcrystallize from EtOAc/hexane