Multi-step reaction with 7 steps
1.1: sulfuric acid / 2 h / 70 °C
2.1: triethylamine / dichloromethane / 25 °C
3.1: potassium carbonate; 18-crown-6 ether / N,N-dimethyl-formamide / 80 °C
4.1: isopropylmagnesium chloride / tetrahydrofuran / 0.5 h / 20 °C
4.2: 2 h / 20 °C
5.1: potassium fluoride / tetrakis(triphenylphosphine) palladium(0) / 1,4-dioxane; water / 2 h / 90 °C
6.1: water; lithium hydroxide / methanol / 2 h / 20 °C
6.2: pH 2
7.1: N-ethyl-N,N-diisopropylamine; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate / dichloromethane / 0.02 h / 20 °C
With
potassium fluoride; 18-crown-6 ether; sulfuric acid; water; isopropylmagnesium chloride; potassium carbonate; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; triethylamine; N-ethyl-N,N-diisopropylamine; lithium hydroxide;
tetrakis(triphenylphosphine) palladium(0);
In
tetrahydrofuran; 1,4-dioxane; methanol; dichloromethane; water; N,N-dimethyl-formamide;