1: 100 percent / PPA / 0.25 h / 90 °C 2: hydroxylamine hydrochloride, NaOH / ethanol; H2O / Heating 3: 60 percent / conc.H2SO4, acetic anhydride / acetic acid / 0.5 h / 60 - 95 °C 4: 1.) NaNO2, aq. HCl, 2.) NaBF4 5: xylene / Heating 6: 1.) Mg, 2.) CuCl / 1.) diethyl ether, reflux, 2h, 2.) -17 deg C 7: 87 percent / 2 M aq. NaOH 8: 52 percent / polyphosphoric acid / 0.13 h / 90 °C 9: 54 percent / hydroxylamine hydrochloride, NaOH / ethanol View Scheme

暂无反应条件数据

1: AlCl3 / CS2 2: Zn, HCl View Scheme

1: With lithium aluminium tetrahydride in tetrahydrofuran 1 h; Cooling with ice; 2: With water in tetrahydrofuran; acetone

thionyl chloride

potassium acetate; Pd(dppf)Cl2 in dimethyl sulfoxide

1.1: 75 percent / polyphosphoric acid / 1 h / 80 °C 2.1: p-toluenesulfonic acid monohydrate; trimethyl orthoformate / methanol; benzene / 40 h / Heating 2.2: 75 percent / p-toluenesulfonic acid monohydrate / benzene / 4 h / Heating 3.1: n-BuLi / tetrahydrofuran; pentane / 0.67 h / -78 °C 3.2: 78 percent / tetrahydrofuran; pentane / 1.25 h / cooling 4.1: 85 percent / boron tribromide / CH2Cl2 / -35 - 0 °C View Scheme

toluene-4-sulfonic acid in benzene Heating;

1.1: polyphosphoric acid / 1 h / 90 °C 2.1: trifluoroacetic acid; triethylsilane / 4 h / 20 - 50 °C 3.1: n-butyllithium / hexane; tetrahydrofuran / 1.5 h / Cooling with acetone-dry ice; Inert atmosphere 3.2: 3.83 h 3.3: pH 8 / Cooling View Scheme

1: polyphosphoric acid 3: 2,3,5,6-tetrachloro-<1,4>benzoquinone 4: aq. K2Cr2O7 / 235 °C View Scheme