反应详情

A mixture of 50.0 ml (20.0 mmol) of 0.4 M mesitylmagnesium bromide in THF, 230 mg (0.40 mmol) of Pd(dba)2, 162 mg (0.80 mmol) of PtBu3, and 3.90 g (20.0 mmol) of 2-bromo-1H-indene was stirred for 48 h at ambient temperature. Then, to the resulting mixture 200 ml of brine was added. The organic layer was separated, and the aqueous layer was extracted with 3×100 ml of ether. The combined organic fractions were dried over K2CO3 and then evaporated to dryness. The product was isolated by flash chromatography on Silica Gel 60 (40-63 um, d 30 mm, 1 300 mm, eluent: hexanes-dichloromethane, 20:1, vol.). Yield 3.19 g (68%) of white solid.

1. customThe organic layer was separated
2. extractionthe aqueous layer was extracted with 3×100 ml of ether
3. dry with materialThe combined organic fractions were dried over K2CO3
4. customevaporated to dryness
5. customThe product was isolated by flash chromatography on Silica Gel 60 (40-63 um, d 30 mm, 1 300 mm, eluent: hexanes-dichloromethane, 20:1, vol.)