Identify the best reagents to convert 1-hexyne into (E)-1-bromo-1-hexene.Select answer from the options below1 equiv HBr1 equiv. Br2, CCl4xs HBrxs Br2, CCl41 equiv HBr, ROOR
Question
Identify the best reagents to convert 1-hexyne into (E)-1-bromo-1-hexene.Select answer from the options below1 equiv HBr1 equiv. Br2, CCl4xs HBrxs Br2, CCl41 equiv HBr, ROOR
Solution
The best reagent to convert 1-hexyne into (E)-1-bromo-1-hexene is 1 equiv HBr.
Here's the step-by-step process:
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1-hexyne is an alkyne, which means it has a triple bond between two of the carbon atoms.
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When 1 equiv HBr is added to 1-hexyne, it will add across the triple bond in a Markovnikov manner. This means that the bromine (Br) will attach to the carbon atom that has the most hydrogen atoms attached to it already.
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The result of this reaction is (E)-1-bromo-1-hexene, which is an alkene with a bromine atom attached to one of the carbon atoms.
The other reagents listed (1 equiv. Br2, CCl4, xs HBr, xs Br2, CCl4, 1 equiv HBr, ROOR) would either add too many bromine atoms or add them in the wrong place. Therefore, 1 equiv HBr is the best reagent for this reaction.
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