反应条件
1: 2,3,5,6-tetrachloro-<1,4>benzoquinone 2: aq. K2Cr2O7 / 235 °C 3: (i) NaN3, H2SO4, (ii) aq. NaNO2, H2SO4, aq. HPF6 4: xylene / Heating 5: (i) Mg, BrCH2CH2Br, (ii) /BRN= 118515/ 6: Zn, aq. HCO2H View Scheme
参考文献
Newman,M.S.; Seshadri,S.
Journal of Organic Chemistry, 1962 , vol. 27, p. 76 - 78