3-chloro-benzenecarboperoxoic acid in dichloromethane T=20°C; 2 h;

bromine; potassium hydroxide in water T=5 - 10°C; 20 h; Industrial scale;

potassium hydroxide T=140 - 150°C; P=200 Torr;

Na2S2O4 in methylene chloride (CH2Cl2)

1: hydrogen chloride; acetic acid / Behandeln des Reaktionsprodukts mit Calciumcarbonat und Wasser 2: bromine; silver oxide View Scheme

bromine; silver(l) oxide

1.1: sodium hydride / tetrahydrofuran; mineral oil / 20 °C / |Large scale 1.2: 1 h / 20 °C / |Reflux; |Large scale 2.1: L-Selectridereg; / tetrahydrofuran / 1 h / |Reflux; |Large scale 3.1: N-bromosuccinmide; 2,2'-azo-bisisobutyronitrile / n-heptane / 0.25 h / 78 °C 4.1: 2,4,6-trimethyl-pyridine / toluene / 2.5 h / 110 °C / |Large scale 5.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 9 h / 66 °C 6.1: tetrahydrofuran / 7 h / 10 °C / |Irradiation 7.1: tetrahydrofuran / 85 h / 25 °C View Scheme

toluene-4-sulfonic acid T=140°C; 0.5 h;

1: HBr / 5 - 10 °C 2: Na2Cr2O7; aqueous H2SO4; aqueous acetic acid / 25 - 30 °C View Scheme

heating; other epoxides in the same way; Mechanism;