1: lithium methanoate With acetic anhydride; N-ethyl-N,N-diisopropylamine in N,N-dimethyl-formamide T=20°C; 1 h; 2: para-bromoacetophenone With 1,1'-bis-(diphenylphosphino)ferrocene; palladium diacetate in N,N-dimethyl-formamide T=120°C; 1 h; Further stages.;
