2,2'-azo-bisisobutyronitrile; tri-n-butyl-tin hydride in benzene T=90°C; P=64600 Torr; 4 h;

triphenylphosphine; methyl iodide; bis-triphenylphosphine-palladium(II) chloride T=120°C; P=3800 Torr; 6 h; Title compound not separated from byproducts;