1: sodium iodide / acetone / 3 h / Inert atmosphere; Reflux 2: caesium carbonate / N,N-dimethyl-formamide / 30 h / 30 °C / Inert atmosphere 3: lithium aluminium tetrahydride / tetrahydrofuran / 72 h / Inert atmosphere; Reflux View Scheme

1: SOCl2 / 1.) reflux, 10 min; 2.) toluene, -5-0 degC 2: 37 percent / B2H6 / tetrahydrofuran / 7 h / Heating View Scheme

1: SOCl2 / 1.) reflux, 10 min; 2.) toluene, -5-0 degC 2: 37 percent / B2H6 / tetrahydrofuran / 7 h / Heating View Scheme

1: caesium carbonate / N,N-dimethyl-formamide / 30 h / 30 °C / Inert atmosphere 2: lithium aluminium tetrahydride / tetrahydrofuran / 72 h / Inert atmosphere; Reflux View Scheme

1: caesium carbonate / N,N-dimethyl-formamide / 30 h / 30 °C / Inert atmosphere 2: lithium aluminium tetrahydride / tetrahydrofuran / 72 h / Inert atmosphere; Reflux View Scheme

1: dichloromethane; acetonitrile / 72 h / 40 °C / Inert atmosphere 2: hydrogenchloride; water / ethanol / 24 h / Inert atmosphere; Reflux 3: caesium carbonate / N,N-dimethyl-formamide / 30 h / 30 °C / Inert atmosphere 4: lithium aluminium tetrahydride / tetrahydrofuran / 72 h / Inert atmosphere; Reflux View Scheme

1: hydrogenchloride; water / ethanol / 24 h / Inert atmosphere; Reflux 2: caesium carbonate / N,N-dimethyl-formamide / 30 h / 30 °C / Inert atmosphere 3: lithium aluminium tetrahydride / tetrahydrofuran / 72 h / Inert atmosphere; Reflux View Scheme

lithium aluminium tetrahydride in tetrahydrofuran 72 h; Inert atmosphereReflux;