Multi-step reaction with 6 steps
1: 1,4-dioxane / 2 h / 20 °C
2: hydroxylamine hydrochloride; N-ethyl-N,N-diisopropylamine / ethanol; methanol / 2 h / 20 - 60 °C
3: potassium carbonate / triphenylphosphine; bis-triphenylphosphine-palladium(II) chloride / propan-1-ol / 4 h / Reflux
4: caesium carbonate / 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl; tris-(dibenzylideneacetone)dipalladium(0) / toluene / 19 h / Reflux; Inert atmosphere
5: trifluoroacetic acid / dichloromethane / 1 h / 20 °C
6: potassium carbonate; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate / N,N-dimethyl-formamide / 24 h / 20 °C
With
hydroxylamine hydrochloride; potassium carbonate; caesium carbonate; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; N-ethyl-N,N-diisopropylamine; trifluoroacetic acid;
bis-triphenylphosphine-palladium(II) chloride; tris-(dibenzylideneacetone)dipalladium(0); 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl; triphenylphosphine;
In
1,4-dioxane; methanol; propan-1-ol; ethanol; dichloromethane; N,N-dimethyl-formamide; toluene;