1H-imidazole in N,N-dimethyl-formamide T=20°C; 72 h;

in N,N-dimethyl-formamide

in acetonitrile

(benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate; triethylamine; trifluoroacetic acid in N,N-dimethyl-formamide

暂无反应条件数据

zinc dichromate(VI) T=20°C;

1: 1) n-BuLi / 1) hexane, ether, -30 to 0 deg C in 2 h, 2) ether, -50 deg C, 3 h 2: 93 percent / NH3OHCl, NaOH / ethanol / 16 h / Heating 3: 70 percent / pyridine / 3 h / Heating 4: 86 percent / liq. NH3 / diethyl ether / 12 h / Ambient temperature 5: 91 percent / Ag2O / diethyl ether / 1 h 6: 92 percent / conc. HCl / methanol 7: 72 percent / 0.2N KOH, KMnO4 / dioxane / 2 h / Ambient temperature 8: 73 percent / N,N'-dicyclohexylcarbodiimide / dioxane; ethyl acetate / 6 h / Ambient temperature View Scheme

1.1: nBuLi / tetrahydrofuran / -30 °C 1.2: 89 percent / tetrahydrofuran / -50 °C 2.1: 60 percent / hydroxylamine hydrochloride / ethanol / 60 °C 3.1: 65 percent / N,N-DMAP; triethylamine / CH2Cl2 / 0 - 20 °C 4.1: NH3 / diethyl ether / -60 °C 4.2: 55 percent / triethylamine; I2 / methanol / 0 - 20 °C 5.1: 77 percent / HCl / methanol / 20 °C View Scheme

1: 1) n-BuLi / 1) hexane, ether, -30 to 0 deg C in 2 h, 2) ether, -50 deg C, 3 h 2: 93 percent / NH3OHCl, NaOH / ethanol / 16 h / Heating 3: 70 percent / pyridine / 3 h / Heating 4: 86 percent / liq. NH3 / diethyl ether / 12 h / Ambient temperature 5: 91 percent / Ag2O / diethyl ether / 1 h 6: 92 percent / conc. HCl / methanol 7: 72 percent / 0.2N KOH, KMnO4 / dioxane / 2 h / Ambient temperature View Scheme

1,1'-bis-(diphenylphosphino)ferrocene; tris(dibenzylideneacetone)dipalladium (0); Ti-N complexes; sodium t-butanolate in toluene T=90°C; 4 h;