Multi-step reaction with 14 steps
1: 1.)NaH / 1)THF, 2a) 45 deg C, 1,25 h, 2b) r.t., 20 h
2: 65 percent / propane-1,2-diol, Na / 0.5 h / 83 - 85 °C
3: 68 percent / lithium acetylide-ethylendiamine / tetrahydrofuran; benzene / 1.) 35 deg C, 4 h; 2.) 50 deg C, 1.5 h
4: 94 percent / bis(triphenylphosphine)PdCl2, CuI / diethylamine / 16 h / Ambient temperature
5: 63 percent / aq. methanesulfonic acid / tetrahydrofuran / 20 h / 40 °C
6: NaBH4 / methanol / Ambient temperature
7: triphenylphosphine / CCl4 / 5 h / 54 °C
8: 90 percent / 12 h / Ambient temperature
9: 86 percent / m-chloroperbenzoic acid, NaHCO3 / CH2Cl2 / 72 h / Ambient temperature
10: 2.) H2 / 1.) Raney-Ni, 2) Pd-C / 1.) dioxane, 30 min, 2.) dioxane, 1 atm, 21 h
11: 45 percent / tungsten hexachloride-n-butyl lithium / hexane; tetrahydrofuran / 1.) 3 deg C, 30 min; 2.) r.t., 1 h
12: 80 percent / NaOH / methanol / 20 h / Ambient temperature
13: 45 percent / SOCl2 / CH2Cl2 / 5.5 h / 40 °C
14: 73 percent / LiOH*H2O / acetonitrile; H2O / 4 h / 70 °C
With
lithium hydroxide; sodium hydroxide; sodium tetrahydroborate; n-butyllithium; thionyl chloride; propylene glycol; methanesulfonic acid; hydrogen; lithium acetylide-ethylenediamine complex; sodium; sodium hydride; tungsten(VI) chloride; sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid; triphenylphosphine;
bis-triphenylphosphine-palladium(II) chloride; palladium on activated charcoal; copper(l) iodide; nickel;
In
tetrahydrofuran; methanol; tetrachloromethane; hexane; dichloromethane; water; diethylamine; acetonitrile; benzene;
DOI:10.1016/S0040-4020(01)85583-6