trifluoroacetic acid in dichloromethane
T=25°C; 3 h;
参考文献
Zefirov, N. S.; Kirin, V. N.; Yur'eva, N. M.; Zhdankin, V. V.; Kozmin, A. S.
Journal of Organic Chemistry USSR (English Translation), 1987 , vol. 23, # 7 p. 1264 - 1279
Zhurnal Organicheskoi Khimii, 1987 , vol. 23, # 7 p. 1402 - 1419