反应条件
1: 1.) K2S2O8, copper(II) sulphate pentahydrate, pyridine, 2.) manganese dioxide / 1.) H2O, acetonitrile, 66-69 deg C, 3 h, 2.) benzene, reflux, 5 h
2: 1.) Mg, 2.) MnO2 / 1.) ether, 30 min; reflux, 30 min, 2.) benzene, reflux, 10 h
3: boron tribromide / CH2Cl2 / 20 h / Ambient temperature
View Scheme
参考文献
Carter, Stephen D.; Wallace, Timothy W.
Synthesis, 1983 , # 12 p. 1000 - 1002
