diethyl ether; magnesium Anschliessend behandeln mit Kohlendioxid;

n-butyllithium; diethyl ether

hydrogen bromide; platinum (II) chloride in water T=100°C; 3 h;

1: With tert.-butyl lithium in tetrahydrofuran; pentane 0.833333 h; cooling; 2: With ethylene dibromide in tetrahydrofuran; pentane 0.5 h; cooling;

1.1: 78 percent / copper(I) oxide; pyridine / 12 h / Heating 2.1: 90 percent / HCl; iron / ethanol / 6 h / Heating 3.1: H2SO4; NaNO2 / H2O / 0.5 h / cooling 3.2: 72 percent / KI; copper / H2O / 0.5 h / Heating 4.1: t-BuLi / tetrahydrofuran; pentane / 0.83 h / cooling 4.2: 76 percent / 1,2-dibromoethane / tetrahydrofuran; pentane / 0.5 h / cooling View Scheme

1.1: H2SO4; NaNO2 / H2O / 0.5 h / cooling 1.2: 72 percent / KI; copper / H2O / 0.5 h / Heating 2.1: t-BuLi / tetrahydrofuran; pentane / 0.83 h / cooling 2.2: 76 percent / 1,2-dibromoethane / tetrahydrofuran; pentane / 0.5 h / cooling View Scheme

1.1: 90 percent / HCl; iron / ethanol / 6 h / Heating 2.1: H2SO4; NaNO2 / H2O / 0.5 h / cooling 2.2: 72 percent / KI; copper / H2O / 0.5 h / Heating 3.1: t-BuLi / tetrahydrofuran; pentane / 0.83 h / cooling 3.2: 76 percent / 1,2-dibromoethane / tetrahydrofuran; pentane / 0.5 h / cooling View Scheme

1.1: 78 percent / copper(I) oxide; pyridine / 12 h / Heating 2.1: 90 percent / HCl; iron / ethanol / 6 h / Heating 3.1: H2SO4; NaNO2 / H2O / 0.5 h / cooling 3.2: 72 percent / KI; copper / H2O / 0.5 h / Heating 4.1: t-BuLi / tetrahydrofuran; pentane / 0.83 h / cooling 4.2: 76 percent / 1,2-dibromoethane / tetrahydrofuran; pentane / 0.5 h / cooling View Scheme

暂无反应条件数据

1: aluminium chloride; sulfur 2: butyl lithium; diethyl ether / Behandeln der Reaktionsloesung mit Brom-Dampf in Stickstoff-Strom 3: copper (I)-bromide; aqueous ammonia / 220 °C 4: benzene 5: bromine; acetic acid 6: ethanol; aqueous hydrochloric acid 7: aq.-ethanolic sulfuric acid; sodium nitrite View Scheme