sodium hydrogencarbonate; tetrakis(triphenylphosphine) palladium(0) in ethylene glycol dimethyl ether 6 h; Heating;

1: 3-bromo-thiophene-2-carboxaldehyde With tetrakis(triphenylphosphine) palladium(0) in ethylene glycol dimethyl ether T=20°C; Suzuki Coupling; 0.25 h; Inert atmosphere; 2: 3,4,5-trimethoxyphenylboronic acid With sodium carbonate in ethylene glycol dimethyl ether; water T=80°C; Suzuki Coupling; 6.5 h; Inert atmosphere;

potassium carbonate; [Pd(C3H5)Cl]2/Tedicyp complex in xylene T=130°C; Suzuki reaction; 20 h;

1 h; Irradiation;

sodium chlorite; sodium dihydrogenphosphate; dihydrogen peroxide in water; acetonitrile T=10 - 20°C; Inert atmosphere;

sodium chloride in methanol; chloroform; isopropyl alcohol; acetone