Как из бромэтана получить бромбензол ?

1)2C2H5Br+2Na=C4H10+2NaBr C4H10+Br2(t) =C4H9Br+HBr C4H9Br+2Na+BrC2H5 = C6H14+2NaBr C6H14(t,k)=C6H6+4H2-АРОМАТИЗАЦИЯ Н- ГЕКСАНА C6H6+Br2(FeBr3) =C6H5Br+HBr ..................................................................................................................................................................... .............................................................................................................................................................