反应条件
1: 1.) Ac2O, HOAc, 2.) Br2 / 1.) reflux, 2 h, 2.) 45 deg C, 1 h 2: 1.) conc. H2SO4, NaNO2, 2.) NaNO2, NaHCO3 3: CrO3, conc. H2SO4, Ac2O / ethanol; H2O / 1 h / Heating View Scheme
参考文献
Rama Rao; Chakraborty; Laxma Reddy; Srinivasa Rao
Tetrahedron Letters, 1992 , vol. 33, # 33 p. 4799 - 4802