反应条件
1: fuming H2SO4 / 8 h / 170 °C
2: 40 percent / 1.) KOH, NaOH, water 2.) conc. HCl / 1.) 140 deg C, 0.5 h; 250 deg C, 1.5 h; 265 deg C, 0.75 h; allowed to cool to 200 deg C
3: 89 percent / conc. H2SO4 / 18 h / Heating
4: 1.) AlCl3, HCl / 1.) 0 deg C, 6 h, ether; 2.) 70 deg C, 1 h, water
5: 81 percent / K2CO3 / acetone / 1.5 h / Heating
6: 1.) NaBH4; 2.) 2N NaOH 3.) 2N HCl / 1.) MeOH, 25 deg C, 0.5 h; 2.) 60 deg C, 0.25 h
7: 73 percent / K2CO3 / acetone / 18 h / Heating
View Scheme
参考文献
Martin; Vogel
Tetrahedron, 1980 , vol. 36, # 6 p. 791 - 794
