Advertisements
Advertisements
प्रश्न
Which of the following is an appropriate set of reactants for the preparation of 1-methoxy-4-nitrobenzene and why?
![]() |
![]() |
| (i) | (ii) |
Advertisements
उत्तर
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
संबंधित प्रश्न
Explain the mechanism of the following reaction:

Write the reactions of Williamson synthesis of 2-ethoxy-3-methylpentane starting from ethanol and 3-methylpentan-2-ol.
Write the name of the reagent and the equation for the preparation of the following ether by Williamson’s synthesis:
Ethoxybenzene
Dehydration of alcohol to ethers is catalysed by:
\[\ce{(CH3)3CONa + CH3CH2Cl ->[-NaCl] (CH3)3COC2H5}\] is called:
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.
Williamson's synthesis of ether is an example of ______.
Write the mechanism of the following reaction:
\[\ce{2CH3CH2OH ->[H^+][413 K] CH3-CH2-O-CH2-CH3 + H2O}\]
What is metamerism? Give the structure and IUPAC name of metamers of 2-methoxy propane.
Write the name of reagents and equations for the preparation of the following ethers by Williamson’s synthesis:
2-Methoxy-2-methylpropane
Write the name of the 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
Identify the product(s) is/are formed when 1-methoxy propane is heated with excess HI. Name the mechanism involved in the reaction.
Predict the major product, when 2-methyl but -2-ene is converted into an alcohol in the following method.
Acid catalysed hydration
Write the name of reagent and equation for the preparation of the following ether by Williamson’s synthesis:
2-Methoxy-2-methylpropane


