lithium aluminium tetrahydride; diphenylphosphoranyl azide; triphenylphosphine; diethylazodicarboxylate 1.) THF, RT, 24 h, 2.) THF, reflux, 1 h; Yield given. Multistep reaction;

1: 1.) Ph3P, diethylazodicarboxylate, diphenylphosphoryl azide, 2.) LiAlH4 / 1.) THF, RT, 24 h, 2.) THF, reflux, 1 h 2: 92 percent / toluene / 18 h / Ambient temperature 3: 90 percent / H2 / 5percent Pd/C / ethanol / 5 h / 60 °C / 15200 - 19000 Torr View Scheme