Starting from 1-hexene, what is the product of the following reactions?

Question

1. Br2, CCl4 2. xs NaNH2, then H2O 3. NaH 4. BrCH2CH2CH3

Select answer from the options below
4-nonyne
1-hexyne
2-heptyne
2-bromo-2-hexane
3-nonyne

Answer 1

The product of the reaction depends on the specific reaction conditions and the order in which the reactions are performed. However, based on the given reactants and reagents, the likely products are:

1. Br2, CCl4: This reaction is a halogenation reaction where the double bond of 1-hexene is broken and replaced with a bromine atom on each carbon. The product would be 1,2-dibromo-1-hexane.

2. xs NaNH2, then H2O: In this reaction, NaNH2 acts as a strong base that can deprotonate 1-hexene, resulting in the formation of a carbon-carbon triple bond. The product would be 1-hexyne.

3. NaH: NaH is a strong base that can deprotonate 1-hexyne, resulting in the formation of a carbon-carbon triple bond. Since 1-hexyne already contains a triple bond, the reaction will likely not have a significant effect on the product.

4. BrCH2CH2CH3: This reagent, bromoethane, can react with 1-hexene through a nucleophilic substitution reaction. The bromine atom will replace the hydrogen atom on the carbon adjacent to the double bond. The product would be 2-bromo-2-hexene.

Therefore, the likely product of these reactions would be 2-bromo-2-hexene.