1: With boron trifluoride diethyl etherate in dichloromethane T=20 - 45°C; 19.5 h; 2: With hydrogenchloride in dichloromethane; water Product distribution / selectivity;

1: With Sodium bromate in water; ethyl acetate T=20°C; 2: With sodium hydrogensulfite in water; ethyl acetate T=20°C; 2 h; Product distribution / selectivity;

N-bromosuccinmide; 2,2'-azo-bisisobutyronitrile in acetonitrile T=20 - 70°C; 2 h; Product distribution / selectivity;