sulfuric acid T=100°C; 0.5 h; Title compound not separated from byproducts;
参考文献
Sheldon, John C.; Taylor, Mark S.; Bowie, John H.; Dua, Suresh; Chia, C.S. Brian; Eichinger, Peter C. H.
Journal of the Chemical Society. Perkin Transactions 2, 1999 , # 2 p. 333 - 340
toluene-4-sulfonic acid in N,N-dimethyl-formamide T=50°C; 12 h;
参考文献
D'Onofrio, Jennifer; Coppola, Cinzia; Fabio, Giovanni Di; De Napoli, Lorenzo; Montesarchio, Daniela
European Journal of Organic Chemistry, 2007 , # 23 p. 3849 - 3858