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प्रश्न
Which of the following is an appropriate set of reactants for the preparation of 1-methoxy-4-nitrobenzene and why?
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| (i) | (ii) |
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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.
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संबंधित प्रश्न
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:
2-Methoxy-2-methylpropane
Illustrate with examples the limitations of Williamson synthesis for the preparation of certain types of ethers.
Explain the following with an example.
Williamson ether synthesis
Write the structure of 3-Bromo-2-methylprop-1-ene
Which of the following cannot be made by using Williamson Synthesis:
\[\ce{(CH3)3CONa + CH3CH2Cl ->[-NaCl] (CH3)3COC2H5}\] is called:
Name the suitable alcohol and reagent, from which 2-Chloro-2-methyl propane can be prepared.
HBr reacts with \[\ce{CH2 = CH - OCH3}\] under anhydrous conditions at room temperature to give ______.
Write the name of the reagent and equation for the preparation of the following ether by Williamson’s synthesis:
2-Methoxy-2-methylpropane
What is metamerism? Give the structure and IUPAC name of metamers of 2-methoxy propane.
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 the reagent and equation 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 names of reagents and equations for the preparation of the following ether by Williamson’s synthesis:
2-Methoxy-2-methylpropane
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
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.
