(Solution) - A laboratory student was converting cyclohexanol to cyclohexyl bromide by -(2025 Original AI-Free Solution)

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A laboratory student was converting cyclohexanol to cyclohexyl bromide by using one equivalent of sodium bromide in a large excess of concentrated sulfuric acid. The major product she recovered was not cyclohexyl bromide, but a compound of formula C6H10 that gave the following 13C NMR spectrum:

(a) Propose a structure for this product.
(b) Assign the peaks in the 13C NMR spectrum to the carbon atoms in the structure.
(c) Suggest modifications in the reaction to obtain a better yield of cyclohexyl bromide.