1: 1-((2-bromovinyl)dimethylsiloxy)-4-t-butylcyclohexane With 2,2'-azo-bisisobutyronitrile; tri-n-butyl-tin hydride in octane; benzene 5 h; Heating; 2: With potassium fluoride; dihydrogen peroxide; potassium hydrogencarbonate in tetrahydrofuran; methanol; water T=20°C; 3: benzoyl chloride With pyridine in acetonitrile T=20°C; 20 h;
