1: phosphorus (III)-bromide 2: aqueous ethanol View Scheme

1: diethylene glycol; potassium fluoride / 110 °C 2: phosphorus (III)-bromide 3: aqueous ethanol View Scheme

1: dibenzoyl peroxide; hydrogen bromide / und Erwaermen des Reaktionsprodukts mit Methanol (oder Aethanol) unter Zusatz von Toluol-4-sulfonsaeure 2: diethylene glycol; potassium fluoride / 110 °C 3: phosphorus (III)-bromide 4: aqueous ethanol View Scheme

1: lithium alanate; diethyl ether 2: phosphorus (III)-bromide 3: aqueous ethanol View Scheme

1: ethylene glycol; potassium fluoride / 130 °C 2: lithium alanate; diethyl ether 3: phosphorus (III)-bromide 4: aqueous ethanol View Scheme

ethanol

hydrogenchloride