Multi-step reaction with 14 steps
1: H2SO4
2: imidazole / dimethylformamide
4: 1.) benzene, ethyl ether, irradiation, 40 min, 2.) ethanol, reflux, 3 h
5: pyridine / 20 h / 4 °C
6: potassium bicarbonate / CH2Cl2 / 24 h / 55 °C
7: 12.5 mg / 3.0 M tert-butyl hydroperoxide in toluene, selenium dioxide, pyridine / CH2Cl2 / 0.5 h / Ambient temperature
8: 6 mg / 0.25 h / 55 °C
9: 96 percent / 0.1 N methanolic KOH / diethyl ether / 1.5 h / Ambient temperature
10: 98 percent / imidazole / dimethylformamide / 0.25 h / 55 °C
11: 91 percent / lithium aluminum hydride / tetrahydrofuran / 0.25 h / 0 °C
12: 1.) oxalyl chloride, DMSO, 2.) triethylamine / 1.) dichloromethane, -60 deg C, 30 min
13: 1.) LDA, 1,10-phenanthroline / 1.) THF, hexane, -75 deg C, 30 min, 2.) 1.5 h
14: 1.) Na2HPO4, 2.) 5percent sodium amalgam / 1.) methanol, THF, RT, 30 min, 2.) 5 deg C, 3 h
With
pyridine; 1H-imidazole; tert.-butylhydroperoxide; potassium hydroxide; disodium hydrogenphosphate; sodium amalgam; lithium aluminium tetrahydride; selenium(IV) oxide; 1,10-Phenanthroline; oxalyl dichloride; sulfuric acid; potassium hydrogencarbonate; dimethyl sulfoxide; triethylamine; lithium diisopropyl amide;
In
tetrahydrofuran; diethyl ether; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1021/jo00250a009