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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
Explain the mechanism of the following reaction:
Write the name of the reagent and the equation for the preparation of the following ether by Williamson’s synthesis:
1-Propoxypropane
How is 1-propoxypropane synthesised from propan-1-ol? Write mechanism of this reaction.
Write the structure of 3-Bromo-2-methylprop-1-ene
Identify the following named reaction
\[\ce{C2H5Br ->[NaOCH3] C2H5OCH3}\]
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 reaction, structure and IUPAC name of the product formed when:
\[\ce{CH3CH2CH(CH3)CH(CH3) ONa}\] reacts with \[\ce{C2H5Br}\]
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
