反应条件
1: 78.5 percent / polyphosphoric acid / 1.5 h / 70 - 75 °C
2: 1.) trimethyl orthoformate, methanol, p-toluenesulphonic acid, 2.) p-toluenesulphonic acid / 1.) heating, 15 min, 2.) benzene, heating
3: 1.) 1.6M butyllithium / 1.) toluene, hexane, 24 h, 0 deg C, 2.) toluene, hexane, -20 deg C up to r.t.
4: 60 percent / H2 / 10percent Pt/C / tetrahydrofuran
5: 78 percent / BBr3
View Scheme
参考文献
Napolitano, Elio; Ramacciotti, Antonella; Fiaschi, Rita
Gazzetta Chimica Italiana, 1988 , vol. 118, # 2 p. 101 - 104
