chlorosulfonic acid
T=40°C; 2 h; other solvent, temperatures, reaction times;
参考文献
Cremlyn, Richard J.; Shode, Olufemi O.; Swinbourne, Frederic J.
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1983 , p. 2181 - 2184