Multi-step reaction with 8 steps
1.1: trichlorophosphate / dichloromethane / 2 h / Reflux; Inert atmosphere
2.1: hydrogen bromide; acetic acid / 1.5 h / Reflux; Inert atmosphere
3.1: sodium hydride / N,N-dimethyl-formamide; mineral oil / Inert atmosphere
3.2: 2 h / 20 °C / Inert atmosphere
4.1: palladium diacetate; sodium carbonate / N,N-dimethyl-formamide / 48 h / 20 °C / Inert atmosphere
5.1: dicyclohexyl-(2',6'-dimethoxybiphenyl-2-yl)-phosphane; tris-(dibenzylideneacetone)dipalladium(0) / water; N,N-dimethyl-formamide / 0.3 h / 150 °C / Microwave irradiation; Inert atmosphere
6.1: caesium carbonate / N,N-dimethyl-formamide / 20 h / 80 °C / Inert atmosphere
7.1: triethylamine; 3-[(diethoxyphosphinyl)oxy]-1,2,3-benzotriazin-4(3H)-one / N,N-dimethyl-formamide / 48 h / 20 °C / Inert atmosphere
8.1: ethanol / 24 h / 110 °C / Inert atmosphere
With
dicyclohexyl-(2',6'-dimethoxybiphenyl-2-yl)-phosphane; tris-(dibenzylideneacetone)dipalladium(0); hydrogen bromide; palladium diacetate; sodium hydride; sodium carbonate; caesium carbonate; acetic acid; triethylamine; 3-[(diethoxyphosphinyl)oxy]-1,2,3-benzotriazin-4(3H)-one; trichlorophosphate;
In
ethanol; dichloromethane; water; N,N-dimethyl-formamide; mineral oil;
4.1: Suzuki coupling;
DOI:10.1016/j.tet.2011.05.035