Multi-step reaction with 10 steps
1: KOH / methanol / 3 h / Heating
2: 3.3 g / HCl / 5 h / Heating
3: 74 percent / AlCl3 / CH2Cl2 / 20 °C
4: 96 percent / stannous chloride dihydrate / ethyl acetate / 0.5 h / Heating
5: 98 percent / Et2NH; CuI / Pd(PPh3)4 / 4 h / 20 °C
6: 61 percent / PdCl2(PhCN)2 / dimethylformamide / 0.5 h / 80 °C
7: 33 percent Turnov. / CsF on Celite / acetonitrile / 48 h / Heating
8: 75 percent / NaOH / methanol / 2.5 h / Heating
9: 57 percent / HATU; N-hydroxybenzotriazole; ethyldiisopropylamine / CH2Cl2 / 0.5 h / 20 °C
10: 92 percent / AcOH / 2,2,2-trifluoro-ethanol / 48 h / 20 °C
With
hydrogenchloride; potassium hydroxide; sodium hydroxide; copper(l) iodide; aluminium trichloride; benzotriazol-1-ol; acetic acid; diethylamine; N-ethyl-N,N-diisopropylamine; cesium fluoride; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate; tin(ll) chloride;
bis(benzonitrile)palladium(II) dichloride; tetrakis(triphenylphosphine) palladium(0);
In
methanol; dichloromethane; 2,2,2-trifluoroethanol; ethyl acetate; N,N-dimethyl-formamide; acetonitrile;
3: Friedel-Crafts reaction;
DOI:10.1016/j.bmc.2005.08.018