Pd0(tris(tert-butyl)phosphine)2; bis(dibenzylideneacetone)-palladium(0) in toluene T=20°C; Stille coupling; 36 h;

1: Methyltriphenylphosphonium bromide With n-butyllithium in tetrahydrofuran; hexane 0.666667 h; Cooling with ice; 2: 5-fluoro-2-nitro-benzaldehyde in tetrahydrofuran; hexane T=10 - 35°C; 3 h;