Podcast
Questions and Answers
Why is bimolecular dehydration not suitable for the preparation of ethyl methyl ether?
Why is bimolecular dehydration not suitable for the preparation of ethyl methyl ether?
- Ethyl methyl ether follows an SN1 pathway during formation.
- Ethyl methyl ether requires a primary alkyl group only.
- Ethyl methyl ether requires an alkyl group that is unhindered. (correct)
- Ethyl methyl ether prefers a high-temperature reaction environment.
In the Williamson synthesis, what type of reaction takes place?
In the Williamson synthesis, what type of reaction takes place?
- Nucleophilic bimolecular substitution (SN2) (correct)
- Acid-base reaction
- Oxidation-reduction reaction
- Nucleophilic unimolecular substitution (SN1)
Why is the dehydration of secondary and tertiary alcohols unsuccessful in giving ethers?
Why is the dehydration of secondary and tertiary alcohols unsuccessful in giving ethers?
- SN2 pathway is preferred over SN1 in these alcohols.
- The alkenes formed are more stable than the ethers.
- Elimination competes over substitution in these cases. (correct)
- Secondary and tertiary alcohols do not react with alkoxides.
Which type of alcohol is suitable for acidic dehydration to form ethers?
Which type of alcohol is suitable for acidic dehydration to form ethers?
What happens when the alkyl group in the preparation of ethers is hindered?
What happens when the alkyl group in the preparation of ethers is hindered?
Why is the bimolecular dehydration method suitable only for primary alkyl groups?
Why is the bimolecular dehydration method suitable only for primary alkyl groups?
What is the first step in the reaction of an ether with concentrated HI?
What is the first step in the reaction of an ether with concentrated HI?
In the cleavage of mixed ethers with two different alkyl groups, which alkyl group forms the alkyl iodide in a reaction involving primary or secondary alkyl groups?
In the cleavage of mixed ethers with two different alkyl groups, which alkyl group forms the alkyl iodide in a reaction involving primary or secondary alkyl groups?
What mechanism is followed when one of the alkyl groups in a reaction involving ethers is a tertiary group?
What mechanism is followed when one of the alkyl groups in a reaction involving ethers is a tertiary group?
What type of nucleophilic substitution mechanism occurs when iodide attacks the oxonium ion formed in the reaction of ether with concentrated HI?
What type of nucleophilic substitution mechanism occurs when iodide attacks the oxonium ion formed in the reaction of ether with concentrated HI?
What is the primary reason for using concentrated HI or HBr in the cleavage of ethers?
What is the primary reason for using concentrated HI or HBr in the cleavage of ethers?
In the reaction involving anisole, what is the product formed after reacting with HI followed by an SN2 mechanism?
In the reaction involving anisole, what is the product formed after reacting with HI followed by an SN2 mechanism?
What is the major product formed when CH3ONa reacts with (CH3)3C–Br?
What is the major product formed when CH3ONa reacts with (CH3)3C–Br?
Why do better results in the SN2 reaction occur when a primary alkyl halide is used?
Why do better results in the SN2 reaction occur when a primary alkyl halide is used?
Why does an alkene form as the only reaction product when a tertiary alkyl halide is used?
Why does an alkene form as the only reaction product when a tertiary alkyl halide is used?
Which of the following is not an appropriate reaction for the preparation of t-butyl ethyl ether?
Which of the following is not an appropriate reaction for the preparation of t-butyl ethyl ether?
Why do ethers have a net dipole moment?
Why do ethers have a net dipole moment?
In the preparation of ethers, why do alkoxides react with alkyl halides to form elimination products?
In the preparation of ethers, why do alkoxides react with alkyl halides to form elimination products?
