反应详情

温度

120 °C

Under nitrogen atmosphere, 1.00 g (3.54 mmol) of methyl 3-bromo-4,7-dimethylindole-2-carboxylate and 0.31 g (5.23 mmol) of dichloro [1,1-bis(diphenylphos-phino)ferrocene]palladium (PdCl2 (dppf)) were suspended in 4 ml of anhydrous dimethylformamide (DMF). Thereto were added 0.57 ml (5.32 mmol) of allyl acetate and 2.7 ml (5.32 mmol) of hexabutylditin. The reaction mixture was stirred at 120° C. for 90 minutes and then subjected to Celite filtration. The filtrate was extracted with chloroform. The extract was purified by silica gel column chromatography (chloroform:n-hexane=1:1 to 3:1) to provide 0.75 g of white crystals. Yield: 87%

1. filtrationsubjected to Celite filtration
2. extractionThe filtrate was extracted with chloroform
3. customThe extract was purified by silica gel column chromatography (chloroform:n-hexane=1:1 to 3:1)