Haloalkanes and Haloarenes

Haloalkanes and Haloarenes

Question

How do you convert:
i) Chlorobenzene to biphenyl
ii) propene to 1-iodopropane
iii) 2-bromobutane to but-2ene

Or
Write the major products(s) in the following:

Answer

i)
ii right parenthesis space CH subscript 3 CH equals CH subscript 2 space rightwards arrow with HBr divided by Peroxide on top space CH subscript 3 CH subscript 2 CH subscript 2 Br space rightwards arrow with NaI divided by acetone on top space CH subscript 3 CH subscript 2 CH subscript 2 straight I

iii right parenthesis space CH subscript 3 CH subscript 2 CHBrCH subscript 3 space rightwards arrow with alc. KOH on top space CH subscript 3 CH equals CH subscript 3
Or

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