When 5-bromo-1-pentanol is treated with sodium hydride in diethyl ether, the product is analyzed to be c5h10o. propose a likely structure for this product, suggesting a reasonable mechanistic pathway for its formation.?

The alcohol is likely to be first deprotonated by the strong base, generating an alkoxide ion, which can then undergo intramolecular SN2 reaction to afford the observed product, a cyclic ether. Cl .. OH .. NaH H2 Cl .. + O : Na .. O NaCl

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