反应详情

A mixture of 155 g (0.52 mole) of 3-hydroxy-5-methoxy-1-phenyl-1H-indole-2-carboxylic acid methyl ester [P. C. Unangst and M. E. Carethers, J. Heterocyclic Chem., 21, 709 (1984)], 83.0 g (0.60 mole) of anhydrous potassium carbonate, and 68 ml (97.8 g; 0.57 mole) of benzyl bromide in 2250 ml of acetone was stirred at reflux for 20 hours. The mixture was cooled, filtered, and the filter cake was washed several times with fresh acetone. The combined filtrates were evaporated (vacuum) to yield a crude residue of 5-methoxy-1-phenyl-3-(phenylmethoxy)-1H-indole-2-carboxylic acid methyl ester.

1. temperatureat reflux for 20 hours
2. temperatureThe mixture was cooled
3. filtrationfiltered
4. washthe filter cake was washed several times with fresh acetone
5. customThe combined filtrates were evaporated (vacuum)