Multi-step reaction with 8 steps
1.1: oxalyl dichloride / 4 h / 20 °C
2.1: N-ethyl-N,N-diisopropylamine / tetrahydrofuran / 3 h / 20 °C
3.1: potassium carbonate / methanol / 5 h / 20 °C
4.1: N-ethyl-N,N-diisopropylamine / tetrahydrofuran / 1 h / 0 - 4 °C / Inert atmosphere
4.2: 3 h / 20 °C / Inert atmosphere
5.1: bis-triphenylphosphine-palladium(II) chloride; N-ethyl-N,N-diisopropylamine / N,N-dimethyl-formamide / 16 h / 90 °C / Inert atmosphere
6.1: 3-chloro-benzenecarboperoxoic acid / dichloromethane / 0 - 20 °C / Inert atmosphere
7.1: N-ethyl-N,N-diisopropylamine / acetonitrile / 0.5 h / 90 °C / Microwave irradiation
8.1: hydrogenchloride / 1,4-dioxane / 24 h / 20 °C
With
hydrogenchloride; bis-triphenylphosphine-palladium(II) chloride; oxalyl dichloride; potassium carbonate; N-ethyl-N,N-diisopropylamine; 3-chloro-benzenecarboperoxoic acid;
In
tetrahydrofuran; 1,4-dioxane; methanol; dichloromethane; N,N-dimethyl-formamide; acetonitrile;