2,2'-azo-bisisobutyronitrile; tris-(trimethylsilyl)silane in acetonitrile; benzene 32 h;

With  tetrabutylammomium bromide; palladium diacetate; potassium carbonate; lithium chloride in  N,N-dimethyl-formamide T=170°C; 0.166667 h;  Microwave irradiation;