Multi-step reaction with 9 steps
1: sodium methylate / methanol / 2 h / -25 - 0 °C
2: 5,5-dimethyl-1,3-cyclohexadiene / 0.5 h / Reflux
3: caesium carbonate / 14 h / 20 °C
4: lithium hydroxide / methanol; tetrahydrofuran; water / 4 h / 55 °C
5: quinoline; copper / 4 h / 140 °C
6: dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2; triethylamine / dimethyl sulfoxide / 24 h / 75 °C
7: lithium hydroxide / methanol; tetrahydrofuran; water / 5 h / 20 °C
8: 1-hydroxybenzotriazol-hydrate; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; 4-methyl-morpholine / N,N-dimethyl-formamide / 18 h / 20 °C
9: lithium hydroxide / methanol; tetrahydrofuran; water / 24 h / 20 °C
With
4-methyl-morpholine; quinoline; dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2; sodium methylate; copper; caesium carbonate; 1-hydroxybenzotriazol-hydrate; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine; lithium hydroxide;
In
tetrahydrofuran; methanol; 5,5-dimethyl-1,3-cyclohexadiene; water; dimethyl sulfoxide; N,N-dimethyl-formamide;