triphenylphosphine in tetrahydrofuran

bromine; triphenylphosphine in acetonitrile T=23°C; 3 h; Large scale reaction;

1: sodium hydroxide / water; acetonitrile / 83 h / 40 - 72 °C / Inert atmosphere; Large scale reaction 2: bromine; triphenylphosphine / acetonitrile / 3 h / 23 °C / Large scale reaction View Scheme

1: sodium hydroxide / water; acetonitrile / 83 h / 40 - 72 °C / Inert atmosphere; Large scale reaction 2: bromine; triphenylphosphine / acetonitrile / 3 h / 23 °C / Large scale reaction View Scheme

1: isopropyl alcohol; toluene / 20 h / Reflux; Large scale reaction 2: sodium hydroxide / water; acetonitrile / 83 h / 40 - 72 °C / Inert atmosphere; Large scale reaction 3: bromine; triphenylphosphine / acetonitrile / 3 h / 23 °C / Large scale reaction View Scheme

1: hydrogen bromide / water; toluene / 7 h / Reflux; Large scale reaction 2: isopropyl alcohol; toluene / 20 h / Reflux; Large scale reaction 3: sodium hydroxide / water; acetonitrile / 83 h / 40 - 72 °C / Inert atmosphere; Large scale reaction 4: bromine; triphenylphosphine / acetonitrile / 3 h / 23 °C / Large scale reaction View Scheme

1: triethylamine / acetonitrile / 2 h / 20 °C / Inert atmosphere; Large scale reaction 2: sodium hydroxide / water; acetonitrile / 83 h / 40 - 72 °C / Inert atmosphere; Large scale reaction 3: bromine; triphenylphosphine / acetonitrile / 3 h / 23 °C / Large scale reaction View Scheme

MP-carbonate in tetrahydrofuran 49 h; Heating / reflux;