18-crown-6 ether; oxygen; rose bengal T=107°C; Irradiation30-60 h; Yield given;

sulfuric acid; tert-butyl alcohol

literature method;

potassium hydroxide

potassium hydroxide

potassium hydroxide

暂无反应条件数据

1: 62 percent / imidazole / dimethylformamide / 2 h / Ambient temperature 2: 60 percent / ethanol / 3 h / Heating 3: 68 percent / n-BuLi, TMEDA / hexane / 1 h / 0 °C 4: 88 percent / (n-Bu)4NF / tetrahydrofuran / 48 h / Ambient temperature 5: 91 percent / PCC, NaOAc, molecular sieves / CH2Cl2 / 0.25 h / 0 °C 6: 85 percent / conc. aq. HCl / CH2Cl2 / Ambient temperature 7: 73 percent / (n-Bu)3SnH, AIBN / benzene / 16 h / Heating View Scheme

2: N,N-diethyl-aniline / 170 °C 3: palladium/charcoal; methanol View Scheme

platinum on activated charcoal T=155°C; Hydrogenation;