FeCl3·6H2O; water in nitromethane 0.05 - 0.0833333 h; Sealed tubeMicrowave irradiation; stereoselective reaction;

1: With sodium tetrahydroborate; acetic acid in dichloromethane T=20°C; 1 h; Inert atmosphere; 2: With phenyl silane; triethylamine in tetrahydrofuran T=20°C; 2 h; Inert atmosphere;