1: 2-bromo-1,4-dimethylbenzene With magnesium; ethylene dibromide in tetrahydrofuran T=80°C; Grignard reaction; 2: dimethyl(phenyl)silyl chloride in tetrahydrofuran Heating;

ammonia; iron(III) chloride; sodium amide T=20°C; Decomposition; 0.0333333 h;