反应条件
sodium hydroxide; ethanol; sulfuric acid 1.) CH2Cl2, reflux, 4 h, 2.) a) from 60 deg C to 65 deg C, 13 h, b) reflux, 8 h; Yield given. Multistep reaction. Yields of byproduct given;
参考文献
Chemical and Pharmaceutical Bulletin, , vol. 40, # 9 p. 2353 - 2357
