反应详情

温度

25 °C

Butyllithium (1.5 mL, 2.4 mmol, 1.6 M) was added at −75° C. to a solution of 5-fluorobenzofuran (0.3 g, 2.2 mmol) in THF (10 mL). Tributyltin chloride (0.98 g, 1 mL) was added at −75° C. and the mixture was allowed to warm to 25° C. over a period of 2 hours. Water (25 mL) was added and the aqueous layer was extracted with diethyl ether (2×25 mL). The combined organic extracts were dried over Na2SO4 and concentrated. Silica gel chromatography (pentane) provided tributyl-(5-fluorobenzofuran-2-yl)-stannane (210 mg).

1. extractionthe aqueous layer was extracted with diethyl ether (2×25 mL)
2. dry with materialThe combined organic extracts were dried over Na2SO4
3. concentrationconcentrated