What is the product of the reaction of butene with Br2 in CHCl3?
Understand the Problem
The question is a chemical reaction involving butene and bromine (Br2) in chloroform (CHCl3). It appears to be asking for the product(s) of this reaction, which is an addition reaction across the double bond of butene.
Answer
The reaction forms a vicinal dibromide of butene.
The reaction of butene with Br2 in CHCl3 (chloroform) results in the addition of bromine across the double bond, forming a vicinal dibromide. The specific product depends on the starting butene isomer (e.g., 1-butene, cis-2-butene, trans-2-butene), leading to different stereoisomers of dibromobutane.
Answer for screen readers
The reaction of butene with Br2 in CHCl3 (chloroform) results in the addition of bromine across the double bond, forming a vicinal dibromide. The specific product depends on the starting butene isomer (e.g., 1-butene, cis-2-butene, trans-2-butene), leading to different stereoisomers of dibromobutane.
More Information
The reaction proceeds via anti-addition, meaning the two bromine atoms add to opposite faces of the double bond.
Tips
Remember to consider the stereochemistry (cis/trans) of the butene starting material, as this will determine the stereochemistry of the product.
Sources
- Bromination of alkenes with Br2 to give dibromides - masterorganicchemistry.com
- Reactions of Alkenes with Bromine - Chemistry LibreTexts - chem.libretexts.org
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