{RuCl2(1-methyl-4-(1-methylethyl)benzene)}2; potassium tert-butylate; ammonia; 9,9-dimethyl-4,5-bis(diphenyl-phosphino)xanthene in 1,1-dimethylpropan-1-ol T=130°C; 16 h; Inert atmosphereSealed tube; regioselective reaction;

trifluoroacetic acid Substitution; Irradiation;

trifluoroacetic acid 4.5 h; Irradiation;