1: hydrogenchloride; sodium nitrite / water / 0.25 h / 0 °C
2: hydrogenchloride; tin(ll) chloride / water / 4 h / |Cooling with ice
3: ethanol / 5 h / |Inert atmosphere; |Reflux
4: polyphosphoric acid / 3 h / 85 °C
View Scheme
1: 12 percent / 8 h / 100 °C
2: 11 percent Turnov. / acetonitrile / 15 h / Irradiation
View Scheme
参考文献
Mitchell, Glynn; Rees, Charles W.
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1987 , p. 413 - 422