(S)-{3,3'-bis(2,4,6-triisopropylphenyl)-1,1'-binaphthalen-2,2'-yl}-N-triflyl-thiophosphoramide; acetic acid in toluene T=20°C; 12 h; Inert atmosphere; optical yield given as percent eeenantioselective reaction;

1: trimethylsilyl azide, iodosobenzene / CH2Cl2 / 0.25 h / 5 - 25 °C 2: TBAF / CH2Cl2; tetrahydrofuran / -5 - 25 °C View Scheme