trifluoroacetic acid in dichloromethane T=20°C; 1 h;
参考文献
Turner, David J.; Anemian, Remi; MacKie, Philip R.; Cupertino, Domenico C.; Yeates, Stephen G.; Turner, Michael L.; Spivey, Alan C.
Organic and Biomolecular Chemistry, 2007 , vol. 5, # 11 p. 1752 - 1763