Question

Write chemical equations for the following conversions.
Ethyl chloride to Butane
1)1 – Bromopropane to 1 – Iodopropane
2)n – Propyl chloride to n – Propyl isocyanide
3)Chlorobenzene to 4 – Chlorotoluene​

Answer 1

Answer

(i) Chlorobenzene is converted to biphenyl by using Fittig reaction. Chlorobenzene reacts with sodium in presence of ether to form biphenyl.

(ii) Propene to 1-iodopropane.

The hydroboration-oxidation of propene gives 1-propanol.

1-propanol then reacts with HI (obtained from KI + H2​SO4​) to form 1-iodopropane.

(iii) 2-bromobutane to but-2-ene.

The dehydrohalogenation of 2-bromobutane in presence of alcoholic KOH gives but-2-ene as major product.

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