Multi-step reaction with 10 steps
1.1: potassium carbonate / methanol / 2 h / 20 °C / Inert atmosphere
2.1: zinc trifluoromethanesulfonate; triethylamine; N-methyl ephedrine / toluene / 1 h / 20 °C / Inert atmosphere
2.2: 4 h / 20 °C / Inert atmosphere
3.1: tetra-(n-butyl)ammonium iodide; N-ethyl-N,N-diisopropylamine / dichloromethane / 0 - 20 °C / Inert atmosphere
4.1: palladium 10% on activated carbon; hydrogen / tetrahydrofuran / 72 h / 20 °C
5.1: triphenylphosphine; diethylazodicarboxylate / toluene / 2 h / 20 °C / Inert atmosphere
6.1: 3-chloro-benzenecarboperoxoic acid / dichloromethane / 24 h / 0 - 20 °C / Inert atmosphere
7.1: potassium hexamethylsilazane / tetrahydrofuran; toluene / 0.75 h / -80 °C / Inert atmosphere
7.2: 1.5 h / -80 - 20 °C / Inert atmosphere
8.1: n-butyllithium / tetrahydrofuran; hexane / 0.5 h / -80 °C / Inert atmosphere
8.2: 2 h / -80 - 20 °C / Inert atmosphere
9.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 24 h / 20 °C / Inert atmosphere
10.1: water; potassium hydroxide / ethanol / 36 h / Reflux; Inert atmosphere
With
n-butyllithium; palladium 10% on activated carbon; tetrabutyl ammonium fluoride; water; hydrogen; tetra-(n-butyl)ammonium iodide; potassium hexamethylsilazane; zinc trifluoromethanesulfonate; potassium carbonate; triethylamine; N-ethyl-N,N-diisopropylamine; 3-chloro-benzenecarboperoxoic acid; triphenylphosphine; potassium hydroxide; diethylazodicarboxylate; N-methyl ephedrine;
In
tetrahydrofuran; methanol; ethanol; hexane; dichloromethane; toluene;
5.1: Mitsunobu reaction / 7.1: Julia-Kocienski coupling / 7.2: Julia-Kocienski coupling;
DOI:10.1002/chem.201001752