Which sequence of reagents works best to convert 3-hexene to 3-hexyne? A)1)HCl 2.NaNH₂ B)1)BH₃∙THF 2.HO^-,H₂O₂ 3.NaNH₂ C)1)NaNH₂ 2.HI 3.H₃O⁺ D)1)Br₂,CH₂Cl₂ 2.NaNH₂(excess) E)1)Cl₂,CH₂Cl₂ 2.NaCN (excess)

Question

Quizplus · Accepted Answer

Option D is correct because the first step involves the addition of bromine across the double bond of 3-hexene, followed by a double dehydrohalogenation using excess sodium amide (NaNH2), which removes two hydrogen halide molecules to form a triple bond, resulting in 3-hexyne.

Which Sequence of Reagents Works Best to Convert 3-Hexene to 3-Hexyne