Multi-step reaction with 13 steps
1: 75 percent / DIBAL-H / Pd(PPh3)2Cl2 / tetrahydrofuran / 2 h / 0 °C
2: 72 percent / CuBr2 / ethyl acetate; CHCl3 / 1 h / 55 °C
3: 95 percent / acetone / 12 h / Heating
4: 71 percent / p-toluene sulfonylhydrazide; sodium acetate trihydrate / tetrahydrofuran; H2O / 5 h / Heating
5: 65 percent / LiAlH4 / diethyl ether / 2 h / 20 °C
6: 90 percent / imidazole / CH2Cl2 / 5 h / 20 °C
7: 73 percent / t-BuONO; CuBr2 / acetonitrile / 2 h / 80 °C
8: 85 percent / n-BuLi / diethyl ether; hexane / -78 - -40 °C
9: 89 percent / benzene / 1 h / Heating
10: 58 percent / p-TsOH / tetrahydrofuran; H2O / 12 h / 20 °C
11: 60 percent / NaHCO3; sodium dithionate / dioxane; H2O / 1 h / 50 °C
12: 82 percent / Et3N; sulfur trioxide-pyridine complex / dimethylsulfoxide / 0.5 h / 25 °C
13: 52 percent / pyridinium dichromate / dimethylformamide / 5 h / 20 °C
With
1H-imidazole; sodium dithionate; lithium aluminium tetrahydride; dipyridinium dichromate; n-butyllithium; tert.-butylnitrite; sodium acetate; sulfur trioxide pyridine complex; diisobutylaluminium hydride; sodium hydrogencarbonate; toluene-4-sulfonic acid; triethylamine; toluene-4-sulfonic acid hydrazide; copper(ll) bromide;
bis-triphenylphosphine-palladium(II) chloride;
In
tetrahydrofuran; 1,4-dioxane; diethyl ether; hexane; dichloromethane; chloroform; water; dimethyl sulfoxide; ethyl acetate; N,N-dimethyl-formamide; acetone; acetonitrile; benzene;
1: Reformatsky reaction / 3: Hantzsch reaction / 7: Sandmeyer reaction / 9: Wittig olefination / 12: Parikh-Doering oxidation;
DOI:10.1007/s00044-005-0126-y