Multi-step reaction with 16 steps
1: aq. NaOH / methanol / 15 h / Heating
2: 96 percent / DCC, DMAP / CH2Cl2 / 14 h / Ambient temperature
3: 87 percent / tetrahydrofuran / 96 h / Heating
4: 1.) NaH, 2.) tetra-n-butylammonium iodide / 1.) THF, 0 deg C, 10 min, 2.) THF, RT, 1 h
5: 1.) 37percent aq. HCl, 2.) DIBAL, LiAlH4, 3.) silica gel, O2
6: 88 percent / m-CPBA / CH2Cl2 / 0.5 h / 25 °C
7: 80 percent / 14 h / 25 °C
8: 98 percent / K2CO3 / methanol / 2 h / 25 °C
9: 98 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 25 °C
10: 89 percent / H2 / 10percent Pd/C / ethanol / 4 h / 760 Torr
11: 1.) NaH, 2.) n-Bu4NI / 1.) THF, 10 min, 2.) THF, 25 deg C, 1 h
12: 98 percent / tetrahydrofuran / 0.25 h / -78 - 0 °C
13: 1.) Pd(PPh3)4, n-PrNH2, 2.) CuI / 1.) benzene, 25 deg C, 15 min, 2.) benzene, 25 deg C, 5 h
14: m-CPBA / CH2Cl2 / 1 h / 25 °C
15: 82 percent / 48percent aq. HBr / tetrahydrofuran / 2 h / 25 °C
16: 1.) AgNO3, 2.) KCN / 1.) THF, EtOH, H2O, 25 deg C, 1 h, 2.) THF, EtOH, H2O, 25 deg C, 10 min
With
2,6-dimethylpyridine; hydrogenchloride; propylamine; dmap; potassium cyanide; sodium hydroxide; copper(l) iodide; lithium aluminium tetrahydride; tetrakis(triphenylphosphine) palladium(0); hydrogen bromide; hydrogen; oxygen; silica gel; tetra-(n-butyl)ammonium iodide; sodium hydride; diisobutylaluminium hydride; potassium carbonate; silver nitrate; 3-chloro-benzenecarboperoxoic acid; dicyclohexyl-carbodiimide;
palladium on activated charcoal;
In
tetrahydrofuran; methanol; ethanol; dichloromethane;
DOI:10.1021/ja00049a023