in diethyl ether

1.) propionic anhydride, steam bath, 2.) 25 - 30 deg C; Yield given. Multistep reaction;

triethylsilane in dichloromethane T=25°C; ΔH(excit.), ΔS(excit.); further reagents: various organosilyl hydrides and Et3GeH; Rate constantThermodynamic dataMechanism;