反应条件
1: SOCl2, SnCl4 2: K / 2-methyl-propan-2-ol / Heating 3: (i) ZnCl2, Ac2O, AcOH, (ii) aq. HCl, (iii) aq. KOH 4: DDQ / benzene / Heating View Scheme
参考文献
Coombs; Jaitly; Crawley
Journal of the Chemical Society. Perkin transactions 1, 1970 , vol. 9, p. 1266 - 1271