反应条件
1.1: acetic anhydride / 3 h / 100 °C
1.2: 84 percent / conc. HCl / tetrahydrofuran / 48 h / 25 °C
2.1: 80 percent / Et3N / tetrahydrofuran / 8 h / 0 - 20 °C
3.1: butyllithium / tetrahydrofuran; hexane / 1 h / -78 °C
3.2: tetrahydrofuran; hexane / 4 h / -78 °C
4.1: 90 percent / aq. HCl / acetonitrile / 36 h / 20 °C
5.1: 65 percent / aq. NaOH / 6 h / Heating
View Scheme
参考文献
Cremonesi, Giuseppe; Dalla Croce, Piero; La Rosa, Concetta; Pizzatti, Enrica
Heterocycles, 2003 , vol. 61, p. 563 - 567
