Multi-step reaction with 5 steps
1.1: potassium carbonate / N,N-dimethyl-formamide / 0.5 h / 50 °C / Inert atmosphere
1.2: 4 h / 100 °C / Inert atmosphere
2.1: caesium carbonate; dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2 / methanol / 0.75 h / 120 °C / Inert atmosphere
3.1: sodium hydride / paraffin oil; N,N-dimethyl-formamide / 0.67 h / 0 - 20 °C / Inert atmosphere
3.2: 2.17 h / 0 - 120 °C / Inert atmosphere
4.1: lithium hydroxide / 1,4-dioxane / 18 h / 20 °C / Inert atmosphere
5.1: HATU; N-ethyl-N,N-diisopropylamine / N,N-dimethyl-formamide / 0.17 h / 20 °C / Inert atmosphere
5.2: 2 h / 20 °C / Inert atmosphere
With
dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2; sodium hydride; potassium carbonate; caesium carbonate; N-ethyl-N,N-diisopropylamine; HATU; lithium hydroxide;
In
1,4-dioxane; methanol; N,N-dimethyl-formamide; paraffin oil;
DOI:10.1021/ml4004815