hydrogen bromide; acetic acid T=70 - 80°C;

1: N-bromosuccinmide; 2,2'-azo-bisisobutyronitrile / acetonitrile / 2 h / 90 °C / |Inert atmosphere 2: dihydrogen peroxide; water / 20 °C View Scheme

1: potassium acetate; (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / N,N-dimethyl-formamide / 48 h / 85 °C / |Inert atmosphere 2: N-bromosuccinmide; 2,2'-azo-bisisobutyronitrile / acetonitrile / 2 h / 90 °C / |Inert atmosphere 3: dihydrogen peroxide; water / 20 °C View Scheme

water; dihydrogen peroxide T=20°C; Kinetics;

calcium carbonate

1: in dichloromethane; cyclohexane 4.5 h; 2: With boron trifluoride diethyl etherate in cyclohexane; water-d2 3: With water; sodium hydrogencarbonate in dichloromethane; cyclohexane 1 h;

boron trifluoride-diethyl ether complex in dichloromethane; cyclohexane