KCET · Chemistry · Haloalkanes and Haloarenes
Cycloalkane formed when 1,4 -dibromopentane is heated with sodium is
- A methyl cyclobutane
- B cyclopentane
- C cyclobutane
- D methyl cyclopentane
Answer & Solution
Correct Answer
(A) methyl cyclobutane
Step-by-step Solution
Detailed explanation
When \(\alpha, \omega\)-dihalogen derivatives of the alkanes (say 1,4-dibromopentane) are treated with sodium or zinc, the corresponding cycloalkane is formed. The reaction undergoes free radical mechanism
On the other hand, \(\alpha\), \(\omega\)-dihalogen derivatives of the alkanes in which the two halogen atoms are further apart than the 1,6-positions, do not form ring compounds but undergo the Wurtz reaction.
On the other hand, \(\alpha\), \(\omega\)-dihalogen derivatives of the alkanes in which the two halogen atoms are further apart than the 1,6-positions, do not form ring compounds but undergo the Wurtz reaction.
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