反应详情

温度

110 °C

A mixture of 3.0 g (0.02 mol) of 2-cyanoindole, 4.2 g (0.02 mol) of tert-butyl-4-fluorobenzoate, and 5.5 g (0.04 mol) of potassium carbonate in 30 ml dimethyl sulfoxide was heated at 110° C. for 48 hours. The reaction was poured onto ice-water and extracted twice with ethyl acetate. The organic extracts were combined, washed with water and dried over magnesium sulfate. Evaporation yielded a dark oil which was flash chromatographed on silica gel, eluting with ethyl acetate-hexane 1:9 to give 3.6 g (0.011 mol) of 1-[4-(tertbutoxycarbonyl)phenyl]-2-cyanoindole as an oil.

1. additionThe reaction was poured onto ice-water
2. extractionextracted twice with ethyl acetate
3. washwashed with water
4. dry with materialdried over magnesium sulfate
5. customEvaporation
6. customyielded a dark oil which
7. customchromatographed on silica gel
8. washeluting with ethyl acetate-hexane 1:9