An alkyl halide (X) on reaction with sodium in dry ether gives 2,3-Dimethylbutane. X on reaction with sodium and chlorobenzene in dry ether gives Z as the major product. What is Z?
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Whenever a Wurtz reaction produces 2,3-dimethylbutane, think of coupling of two isopropyl groups. In a Wurtz-Fittig reaction, replace one of those isopropyl groups by a phenyl group to obtain cumene (isopropyl benzene).
