ChemInform Abstract: Neospiroenones. Synthesis of 10,11‐Dimethoxy‐1,6,6‐trimethyl‐5,6,8,12b‐tetrahydrobenzo [d,f]indol‐4(3H)‐one and 10,11‐Dimethoxy‐6,6‐dimethyl‐1,5,6,12b‐tetrahydrobenzo [d,f]indol‐2(8H)‐one.
ChemInform Abstract: Neospiroenones. Synthesis of 10,11‐Dimethoxy‐1,6,6‐trimethyl‐5,6,8,12b‐tetrahydrobenzo [d,f]indol‐4(3H)‐one and 10,11‐Dimethoxy‐6,6‐dimethyl‐1,5,6,12b‐tetrahydrobenzo [d,f]indol‐2(8H)‐one.