sulfuric acid in acetonitrile T=80°C; Fischer cyclization;
参考文献
Hillier, Michael C.; Marcoux, Jean-Francois; Zhao, Dalian; Grabowski, Edward J. J.; McKeown, Arlene E.; Tillyer, Richard D.
Journal of Organic Chemistry, 2005 , vol. 70, # 21 p. 8385 - 8394
Fink, David M.; Palermo; Bores, Gina M.; Huger, Francis P.; Kurys, Barbara E.; Merriman, Michael C.; Olsen, Gordon E.; Petko, Wayne; O'Malley, Gerard J.
Bioorganic and Medicinal Chemistry Letters, 1996 , vol. 6, # 6 p. 625 - 630