反应详情

温度

80 °C

A mixture of 2.00 g 4-iodo-anisol, 2.00 g pentafluoroethyl-trimethylsilane, 0.60 g potassium fluoride, 2.43 g copper iodide and 15 ml N,N-dimethylformamide is stirred overnight at 80° C. Then the mixture is stirred for a further 36 h at 80° C., while a further 2.00 g pentafluoroethyl-trimethylsilane are added after 4 h, 12 h and 24 h. After cooling to ambient temperature 2 M aqueous ammonia solution is added and the mixture is filtered. The filtrate is extracted with ethyl acetate, and the combined organic extracts are dried (Na2SO4) and evaporated down. The residue is chromatographed on silica gel with petroleum ether/ethyl acetate (9:1) as eluant.

1. additionare added after 4 h, 12 h and 24 h
2. additionis added
3. filtrationthe mixture is filtered
4. extractionThe filtrate is extracted with ethyl acetate
5. dry with materialthe combined organic extracts are dried (Na2SO4)
6. customevaporated down
7. customThe residue is chromatographed on silica gel with petroleum ether/ethyl acetate (9:1) as eluant