1: 3-bromo-3,5-dimethoxyphenol With n-butyllithium in tetrahydrofuran; hexane T=-25°C; 2 h; 2: carbon dioxide in tetrahydrofuran; dichloromethane T=20°C; Further stages.;
参考文献
Runge; Haufe
Journal of Organic Chemistry, 2000 , vol. 65, # 25 p. 8737 - 8742