Through what mechanism can a 1,2-halohydrin be converted into an epoxide? A) S_N1 B) S_N2 C) E2 D) electrophilic addition E) polymerization

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A 1,2-halohydrin can be converted into an epoxide through the intramolecular nucleophilic substitution reaction, known as the Williamson ether synthesis. This reaction can occur via a SN1 or SN2 mechanism, but the best choice for this conversion is B (S_N2) because it specifies a unimolecular substitution reaction (SS1) with the leaving group (halogen) and nucleophile (alcohol) in the same molecule (intramolecular).

Through What Mechanism Can a 1,2-Halohydrin Be Converted into an Epoxide