Reactions of Ethers
Ethers (R-O-R’) are compounds formed by replacing hydrogen atoms of an alcohol (R-OH compound) or a phenol (C6H5OH) by an aryl/ acyl group (functional group after removing single hydrogen from an aromatic ring). In this section, reaction, preparation and behavior of ethers are discussed in the context of organic chemistry.
Epoxides
Epoxides are a special class of cyclic ethers which are an important functional group in organic chemistry and generate reactive centers due to their unusual high reactivity. Due to their high reactivity, epoxides are considered to be toxic and mutagenic.
Williamson Ether Synthesis
An organic reaction in which an organohalide and a deprotonated alcohol forms ether is known as Williamson ether synthesis. Alexander Williamson developed the Williamson ether synthesis in 1850. The formation of ether in this synthesis is an SN2 reaction.
![### Classify Dienes That Will React with Ethene in a Diels-Alder Reaction
#### Instructions
Select which dienes from the answer bank will react with ethene in a Diels-Alder reaction and classify them under the appropriate category.
#### Categories
- **Will react**
- **Will not react**
#### Answer Bank
The answer bank includes six chemical structures. Detailed descriptions of the structures are as follows:
1. **First Structure**:
- It is a bicyclic compound with two hexagonal rings fused together.
2. **Second Structure**:
- Contains two butadiene units.
- The structure has a long carbon chain with alternating double bonds.
- This is an aromatic compound with five carbon atoms and one double bond.
3. **Third Structure**:
- It is a cyclic compound with a pentagon ring and one double bond.
4. **Fourth Structure**:
- It is a pentagon ring with two double bonds.
#### Graphical Representation
- Two empty boxes labeled "Will react" and "Will not react" are provided.
- Students need to drag each structure from the answer bank into the appropriate box based on whether they will react with ethene in a Diels-Alder reaction.
#### Educational Note
The Diels-Alder reaction is a chemical reaction between a conjugated diene and a substituted alkene, commonly termed the dienophile, to form a substituted cyclohexene system. It is a useful reaction for forming six-membered rings and is used in synthetic organic chemistry for constructing complex natural products.
#### Analyze the Structures
- For a compound to react in a Diels-Alder reaction with ethene, it must contain a diene which is in the correct s-cis conformation.
- Check each structure:
- Is there a conjugated diene present?
- Is the diene able to adopt the s-cis conformation?
Use this information to classify the dienes under the appropriate categories.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffb9b51b7-8e30-472f-a9b1-c9ee115779d7%2Fcefa4b3c-7407-4723-bb50-56fe1f02a42a%2F449rlt_processed.png&w=3840&q=75)
![](/static/compass_v2/shared-icons/check-mark.png)
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 3 images
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
![Chemistry](https://www.bartleby.com/isbn_cover_images/9781305957404/9781305957404_smallCoverImage.gif)
![Chemistry](https://www.bartleby.com/isbn_cover_images/9781259911156/9781259911156_smallCoverImage.gif)
![Principles of Instrumental Analysis](https://www.bartleby.com/isbn_cover_images/9781305577213/9781305577213_smallCoverImage.gif)
![Chemistry](https://www.bartleby.com/isbn_cover_images/9781305957404/9781305957404_smallCoverImage.gif)
![Chemistry](https://www.bartleby.com/isbn_cover_images/9781259911156/9781259911156_smallCoverImage.gif)
![Principles of Instrumental Analysis](https://www.bartleby.com/isbn_cover_images/9781305577213/9781305577213_smallCoverImage.gif)
![Organic Chemistry](https://www.bartleby.com/isbn_cover_images/9780078021558/9780078021558_smallCoverImage.gif)
![Chemistry: Principles and Reactions](https://www.bartleby.com/isbn_cover_images/9781305079373/9781305079373_smallCoverImage.gif)
![Elementary Principles of Chemical Processes, Bind…](https://www.bartleby.com/isbn_cover_images/9781118431221/9781118431221_smallCoverImage.gif)