aluminum tri-bromide; trifluoroacetic acid in dichloromethane
T=20°C; 0.25 h;
参考文献
Parnes, Zinaida N.; Bolestova, Galina I.; Akhrem, Irene S.; Vol'pin, Mark E.; Kursanov, Dmitry N.
Journal of the Chemical Society, Chemical Communications, 1980 , # 16 p. 748