Multi-step reaction with 6 steps
1.1: potassium acetate; bis-triphenylphosphine-palladium(II) chloride / 1,4-dioxane; ethyl acetate / 17 h / Reflux; Inert atmosphere
2.1: bis-triphenylphosphine-palladium(II) chloride; sodium carbonate / water / 24 h / 50 °C / Reflux
3.1: N,N-dimethyl-formamide / 18 h / 115 °C / Inert atmosphere
4.1: hydrogen; platinum(IV) oxide / methanol / 18 h
5.1: lithium hydroxide monohydrate / methanol; tetrahydrofuran / 1.5 h / Reflux
5.2: pH 2 / Cooling with ice
6.1: N-ethyl-N,N-diisopropylamine; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate / N,N-dimethyl-formamide / 65 h / 20 °C
With
platinum(IV) oxide; bis-triphenylphosphine-palladium(II) chloride; lithium hydroxide monohydrate; hydrogen; potassium acetate; sodium carbonate; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; N-ethyl-N,N-diisopropylamine;
In
tetrahydrofuran; 1,4-dioxane; methanol; water; ethyl acetate; N,N-dimethyl-formamide;