1: 2-iodo-benzoyl chloride; DR9HMPA-CH2OH With 4-(N,N-dimethlyamino)pyridine; TEA in pyridine T=20°C; 36 h; 2: thiophen-3-yl boronic acid With tetrakis(triphenylphosphine) palladium(0); sodium carbonate in water; N,N-dimethyl-formamide T=110°C; 3: With trifluoroacetic acid in dichloromethane T=20°C; 1 h;

1: thionyl chloride / 45 °C / |Inert atmosphere 2: AlCl3, aluminium chloride; carbon disulfide / 6 h / |Inert atmosphere; |Reflux View Scheme