Identify the 'type' of organic reaction represented below. Put your answer in the box provided (limit your answer to addition, substitution, elimination, or rearrangement). If the reaction is a combination of more than one reaction 'type' then separate the two terms with an 'and' (e.g. addition and rearrangement): Br OEt NaOEt Ag₂O b. H₂O heat H₂CO. C. O 'Н heat H₂CO
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.
![### Types of Organic Reactions
Identify the 'type' of organic reaction represented below. Put your answer in the box provided (limit your answer to **addition, substitution, elimination, or rearrangement**). If the reaction is a combination of more than one reaction 'type' then separate the two terms with an 'and' (e.g. **addition and rearrangement**):
#### Reaction A
- **Reactants/Conditions**:
- Starting material: A bromo-substituted alkane
- Reagent: Sodium ethoxide (NaOEt)
- **Product**:
- An ethoxy-substituted alkane
**Type of Reaction**:
*Substitution*
#### Reaction B
- **Reactants/Conditions**:
- Starting material: An amine-substituted alkane
- Reagents: Silver oxide (Ag2O), Water (H2O), Heat
- **Product**:
- An alkene with an elongated carbon chain
**Type of Reaction**:
*Elimination*
#### Reaction C
- **Reactants/Conditions**:
- Starting materials: A methoxy-substituted alkene and an aldehyde
- Reagent: Heat
- **Product**:
- A hexagonal ring with both methoxy and carbonyl functional groups
**Type of Reaction**:
*Addition and Rearrangement*
### Explanation of Diagrams
Each represented reaction shows the structural transformation of organic molecules under specific reagents and conditions:
1. **Reaction A**: One halogen atom (Br) in the starting alkane molecule is substituted by an ethoxy group through a nucleophilic substitution mechanism involving NaOEt.
2. **Reaction B**: The starting amine functional group is eliminated, resulting in the formation of a double bond and an alkene product, influenced by the Ag2O and heat.
3. **Reaction C**: Two reactants, an alkene and an aldehyde, undergo a combination of addition (where new bonds are formed) and rearrangement, resulting in a cyclic product.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2b8d26a8-87eb-4d55-9239-418c1bd04690%2F51d3106a-4936-49a6-bc6b-03b2e933a1f3%2Fz2y2ldd_processed.jpeg&w=3840&q=75)
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