Advertisements
Advertisements
Question
Which of the following is an appropriate set of reactants for the preparation of 1-methoxy-4-nitrobenzene and why?
![]() |
![]() |
| (i) | (ii) |
Advertisements
Solution
Set (ii) is more appropriate for the preparation of 1-methoxy-4-nitrobenzene.
In the set (i), the CH3O− acts as a nucleophile. But the presence of a bulky
group prevents the nucleophilic attack. In set (ii), the nucleophile
attacks CH3Br and the desired product
is formed.
APPEARS IN
RELATED QUESTIONS
Write the name of the reagent and equation for the preparation of the following ethers by Williamson’s synthesis:
1-Methoxyethane
How is 1-propoxypropane synthesised from propan-1-ol? Write mechanism of this reaction.
Preparation of alcohols from alkenes involves the electrophilic attack on alkene carbon atom. Explain its mechanism.
The Williamson ether synthesis produces ethers by reacting an
Name the suitable alcohol and reagent, from which 2-Chloro-2-methyl propane can be prepared.
Write the mechanism of the following reaction:
\[\ce{2CH3CH2OH ->[H^+][413 K] CH3-CH2-O-CH2-CH3 + H2O}\]
Write the name of reagent and equation for the preparation of the following ether by Williamson’s synthesis:
2-Methoxy-2-methylpropane
Write the name of reagent and equation for the preparation of the following ethers by Williamson’s synthesis:
2-Methoxy-2-methylpropane
Write the name of reagent and equation for the preparation of the following ethers by Williamson’s synthesis:
2-Methoxy-2-methylpropane
What is metamerism? Give the structure and IUPAC name of metamers of 2-methoxy propane.
Write the name of reagent and equation for the preparation of the following ethers by Williamson’s synthesis:
2-Methoxy-2-methylpropane
What will be the product (X and A)for the following reaction
\[\ce{acetylchloride->[i)CH3MgBr][ii)H3O+]X ->[acidk2crp3]A}\]
Write the names of reagents and equations for the preparation of the following ether by Williamson’s synthesis:
2-Methoxy-2-methylpropane
Short Answer Question.
Identify the product (s) is/are formed when 1 – methoxy propane is heated with excess HI. Name the mechanism involved in the reaction.
Write the name of reagent and equation for the preparation of the following ether by Williamson’s synthesis:
2-Methoxy-2-methylpropane
Identify the product (s) is/are formed when 1-methoxy propane is heated with excess HI. Name the mechanism involved in the reaction.
Write the name of reagent and equation for the preparation of the following ether by Williamson’s synthesis:
2-Methoxy-2-methylpropane
Consider the following reaction:

Identify products A and B.


