1: acetyl chloride With polystyrene supported sodium selenide in tetrahydrofuran; N,N-dimethyl-formamide T=0 - 25°C; 4.5 h; 2: Kupfer-(p-brom-phenyl)-acetylid in N,N-dimethyl-formamide T=80°C; 14 h;

1: benzoyl chloride With polystyrene supported sodium selenide in tetrahydrofuran; N,N-dimethyl-formamide T=0 - 25°C; 4.5 h; 2: Kupfer-(p-brom-phenyl)-acetylid in N,N-dimethyl-formamide T=80°C; 14 h;