反应条件
1: H2SO4 / toluene / Heating 2: (i) NaOEt, EtOH, (ii) /BRN= 1783790/ 3: (i) aq. HCl, (ii) /BRN= 1098229/, H2SO4 4: (i) pyrrolidine, TsOH, benzene, (ii) /BRN= 1697767/, dioxane 5: H2 / Pd-BaSO4, quinoline / petroleum ether View Scheme
参考文献
Demole,E.; Stoll,M.
Helvetica Chimica Acta, 1962 , vol. 45, p. 692 - 703