For each reaction below suggest structures for alkenes that give the indicated reaction products. There may be more than one answer in some cases. Br HBr ether ex

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Question 17
**Exercise: Predicting Alkene Structures for Given Reaction Products**

**Objective:**
For each reaction below, suggest structures for alkenes that give the indicated reaction products. Note that there may be more than one correct answer in some cases.

**Reaction and Products:**

The image shows a reaction scheme where an alkene reacts with HBr (hydrobromic acid) in the presence of ether to yield a product.

**Product Structure:**
- The product is a brominated alkane, depicted with Br attached to a carbon chain.

**Reaction Scheme:**

1. **Reactants:**
   - HBr
   - Ether (as a solvent)

2. **Reaction Arrow:**
   - Indicates the direction of the reaction, pointing from reactants to products.

3. **Product:**
   - A carbon chain with a bromine (Br) atom attached.

**Detailed Description of the Product Structure:**
- The product is a bromoalkane.
- The carbon chain structure shows the placement of the bromine atom.

**Task:**
- Using your knowledge of alkene reactions, propose possible alkene structures that could lead to the given bromoalkane product when they react with HBr.

**Hints:**
- Remember Markovnikov's rule: In the addition of HX to an alkene, the hydrogen atom attaches to the carbon with the greater number of hydrogen atoms, and the halide (Br in this case) attaches to the carbon with fewer hydrogen atoms.
- Consider all possible alkene isomers that can lead to the same bromoalkane product.

**Example of Possible Alkenes:**
- 1-Butene
- 2-Butene

Engage with this exercise to enhance your understanding of organic reaction mechanisms and alkene reactivity.
Transcribed Image Text:**Exercise: Predicting Alkene Structures for Given Reaction Products** **Objective:** For each reaction below, suggest structures for alkenes that give the indicated reaction products. Note that there may be more than one correct answer in some cases. **Reaction and Products:** The image shows a reaction scheme where an alkene reacts with HBr (hydrobromic acid) in the presence of ether to yield a product. **Product Structure:** - The product is a brominated alkane, depicted with Br attached to a carbon chain. **Reaction Scheme:** 1. **Reactants:** - HBr - Ether (as a solvent) 2. **Reaction Arrow:** - Indicates the direction of the reaction, pointing from reactants to products. 3. **Product:** - A carbon chain with a bromine (Br) atom attached. **Detailed Description of the Product Structure:** - The product is a bromoalkane. - The carbon chain structure shows the placement of the bromine atom. **Task:** - Using your knowledge of alkene reactions, propose possible alkene structures that could lead to the given bromoalkane product when they react with HBr. **Hints:** - Remember Markovnikov's rule: In the addition of HX to an alkene, the hydrogen atom attaches to the carbon with the greater number of hydrogen atoms, and the halide (Br in this case) attaches to the carbon with fewer hydrogen atoms. - Consider all possible alkene isomers that can lead to the same bromoalkane product. **Example of Possible Alkenes:** - 1-Butene - 2-Butene Engage with this exercise to enhance your understanding of organic reaction mechanisms and alkene reactivity.
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