toluene-4-sulfonic acid; sodium sulfate in toluene
10 h; Heating; Title compound not separated from byproducts;
参考文献
Da Silva Ferreira, Antonio Cesar; Barbe, Jean-Christophe; Bertrand, Alain
Journal of Agricultural and Food Chemistry, 2002 , vol. 50, # 9 p. 2560 - 2564