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प्रश्न
Write the equations involved in the following reactions : Williamson synthesis
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उत्तर १
उत्तर २
Williamson synthesis: It involves the treatment of an alkyl halide with a suitable sodium alkoxide. The sodium alkoxide needed for the purpose is prepared by the action of sodium on a suitable alcohol. The reaction invlolves the nucleophillic displacement (substitution) of the halide ion from the alkyl halide by the alkoxide ion by SN2 mechanism.
R-OH +2Na → 2R’-O-Na+ + H2
R’-O-Na+ + R-X → R’-O-R +Na+ X
Ether
The second reaction is the substitution nucleophillic bimolecular (SN2) reaction.
For example:
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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:
1-Propoxypropane
Explain the following with an example.
Williamson ether synthesis
Dehydration of alcohol to ethers is catalysed by:
\[\ce{(CH3)3CONa + CH3CH2Cl ->[-NaCl] (CH3)3COC2H5}\] is called:
The Williamson ether synthesis produces ethers by reacting an
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 the reagent and equation for the preparation of the following ether by Williamson’s synthesis:
2-Methoxy-2-methylpropane
What will be the product (X and A)for the following reaction
\[\ce{acetylchloride->[i)CH3MgBr][ii)H3O+]X ->[acidk2crp3]A}\]
Consider the following reaction:
Identify products A and B.
