Multi-step reaction with 10 steps
1: 1.) NaH / 1.) DME, RT, 30 min, 2.) reflux, 18 h
2: 93 percent / n-Bu4NF / tetrahydrofuran / 16 h / Ambient temperature
3: 94 percent / MnO2 / CH2Cl2 / 24 h / Ambient temperature
4: 1.) n-BuLi / 1.) THF, hexane, a) -78 deg C, 2 h, b) -10 deg C, 1 h, 2.) -78 deg C to RT, 4 h
5: 100 percent / n-Bu4NF / tetrahydrofuran / 20 h / Ambient temperature
6: 100 percent / Et3N, 4-(dimethylamino)pyridine / CH2Cl2 / 4 h / Ambient temperature
7: 1.) t-BuOOH, VO(acac)2, 2.) n-Bu4NF / 1.) benzene, 60 deg C, 3 h, 2.) THF, RT, 16 h
8: 4-(dimethylamino)pyridine / CH2Cl2 / 5 h / 0 - 5 °C
9: 79 percent / NaHCO3 / 1,2-dimethoxy-ethane / 7 h / 85 - 90 °C
10: 88 percent / NaBH4, H2O / dioxane / 3 h / Ambient temperature
With
tert.-butylhydroperoxide; dmap; manganese(IV) oxide; sodium tetrahydroborate; n-butyllithium; bis(acetylacetonate)oxovanadium; tetrabutyl ammonium fluoride; water; sodium hydride; sodium hydrogencarbonate; triethylamine;
In
tetrahydrofuran; 1,4-dioxane; 1,2-dimethoxyethane; dichloromethane;
DOI:10.1021/ja00008a044