Multi-step reaction with 9 steps
1: N-ethyl-N,N-diisopropylamine / acetonitrile / 17 h / Reflux
2: caesium carbonate; sodium iodide / acetonitrile / 24 h / Reflux
3: sulfuric acid; trifluoroacetic acid / 5 h / Reflux
4: pyridine; dmap / acetonitrile / 0.25 h / 0 - 20 °C
5: dicyclohexyl-(2',6'-dimethoxybiphenyl-2-yl)-phosphane; potassium phosphate; palladium diacetate / N,N-dimethyl-formamide / 0.5 h / 100 °C / Inert atmosphere; Irradiation
6: water; sodium hydroxide / tetrahydrofuran / 10 h / Reflux
7: dicyclohexyl-(2',6'-dimethoxybiphenyl-2-yl)-phosphane; potassium phosphate; palladium diacetate / N,N-dimethyl-formamide / 3 h / 100 °C / Inert atmosphere; Irradiation
8: water; dihydrogen peroxide; sodium hydroxide / tetrahydrofuran / 48 h / Reflux
9: benzotriazol-1-ol; N-ethyl-N,N-diisopropylamine; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride / N,N-dimethyl-formamide / 3 h / 60 °C
With
dicyclohexyl-(2',6'-dimethoxybiphenyl-2-yl)-phosphane; pyridine; dmap; potassium phosphate; sulfuric acid; water; dihydrogen peroxide; palladium diacetate; benzotriazol-1-ol; caesium carbonate; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine; trifluoroacetic acid; sodium iodide; sodium hydroxide;
In
tetrahydrofuran; N,N-dimethyl-formamide; acetonitrile;
5: |Suzuki-Miyaura Coupling / 7: |Buchwald-Hartwig Coupling;
DOI:10.1016/j.bmc.2015.11.009