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प्रश्न
Write the reactions of Williamson synthesis of 2-ethoxy-3-methylpentane starting from ethanol and 3-methylpentan-2-ol.
उत्तर
\[\begin{array}{cc}
\ce{CH3 - CH2 - CH - CH - CH3 ->[Na] CH3 - CH2 - CH - CH - ONa}\\
\phantom{......}|\phantom{......}|\phantom{............................}|\phantom{......}|\phantom{.}\\
\phantom{.........}\ce{\underset{3-Methylpentan-2-ol}{CH3\phantom{...}OH\phantom{}}}\phantom{....................}\ce{\underset{2,3-Dimethylpentane}{\phantom{.}CH3\phantom{..}CH3}}\phantom{..}
\end{array}\]
\[\ce{\underset{Ethanol}{C2H5OH} ->[HBr] \underset{Bromoethane}{C2H5Br}}\]
\[\begin{array}{cc}
\ce{CH3 - CH2 - CH - CH - ONa + C2H5Br -> CH3 - CH2 - CH - CH - OC2H5}\\
\phantom{.......}|\phantom{......}|\phantom{.............................................}|\phantom{......}|\phantom{...........}\\
\phantom{........}\ce{CH3\phantom{...}CH3\phantom{.....................................}}\phantom{}\ce{\underset{2-Ethoxy-3-methylpentane}{\phantom{}CH3\phantom{...}CH3}\phantom{.....}}
\end{array}\]
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संबंधित प्रश्न
Write the equations involved in the following reactions : Williamson synthesis
Write the name of the reagent and the equation for the preparation of the following ether by Williamson’s synthesis:
Ethoxybenzene
Write the name of the reagent and the equation for the preparation of the following ether by Williamson’s synthesis:
2-Methoxy-2-methylpropane
Preparation of ethers by acid dehydration of secondary or tertiary alcohols is not a suitable method. Give reason.
Write the structure of 3-Bromo-2-methylprop-1-ene
Williamson's synthesis of preparing dimethyl ether is a/an ____________.
Which of the following cannot be made by using Williamson Synthesis:
Preparation of alcohols from alkenes involves the electrophilic attack on alkene carbon atom. Explain its mechanism.
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.
Write the equations for the following reaction:
Tert butyl chloride is treated with sodium ethoxide.
Williamson's synthesis of ether is an example of ______.
HBr reacts with \[\ce{CH2 = CH - OCH3}\] under anhydrous conditions at room temperature to give ______.
Write the mechanism of the following reaction:
\[\ce{2CH3CH2OH ->[H^+][413 K] CH3-CH2-O-CH2-CH3 + H2O}\]
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
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.
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 ether by Williamson’s synthesis:
2-Methoxy-2-methylpropane
