1: 4-(N,N-dimethlyamino)pyridine; pyridine / dichloromethane / 1.33 h / -10 °C 2: N-ethyl-N,N-diisopropylamine / dimethyl sulfoxide / 8 h / 70 °C View Scheme

<b>Multi-step reaction with 2 steps<br /> </b>1: 1,1'-bis-(diphenylphosphino)ferrocene; palladium diacetate; caesium carbonate / toluene / 16 h / 90 &deg;C / |Inert atmosphere<br />2: hydrogenchloride / ethanol / |Reflux<br /> <br /> &nbsp;