反应详情

To 118D (630 mg, 3.46 mmol) in ethyl acetate (10 mL) was added a solution of KCN (676 mg) and NaHSO3 (1.08 g) dissolved in H2O (10 mL). It was left stirring overnight before extracted with ethyl acetate (2×50 mL). The combined organic extracts were dried and concentrated. The crude producte was purified by column chromatography to give 118E (685 mg, 92% yield) as an oil. 1H NMR (400 MHz, CDCl3) δ ppm 1.23 (t, J=7.69 Hz, 3H) 1.44 (t, J=7.03 Hz, 3H) 2.62 (q, J=7.76 Hz, 2H) 4.11 (q, J=7.03 Hz, 2H) 5.75 (s, 1H) 6.85 (dd, J=7.91, 2.20 Hz, 1H) 6.96 (dd, J=5.93, 1.98 Hz, 1H).

1. waitIt was left
2. extractionbefore extracted with ethyl acetate (2×50 mL)
3. customThe combined organic extracts were dried
4. concentrationconcentrated
5. customThe crude producte was purified by column chromatography