1: With hydrogen bromide in water 2: With bromine in water T=0 - 5°C; 0.166667 h; 3: With sodium hydroxide; sodium nitrite more than 3 stages;

tributylphosphine; copper(l) chloride in acetonitrile 14.5 h; Heating;

1: palladium diacetate; triphenylphosphine; sodium t-butanolate / Inert atmosphere; Heating 2: potassium tert-butylate; ammonia / 1 h / Inert atmosphere; Irradiation View Scheme

dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II) dichloromethane adduct; sodium t-butanolate in toluene T=120°C; 8 h; Inert atmosphere;