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प्रश्न
Write the reactions of Williamson synthesis of 2-ethoxy-3-methylpentane starting from ethanol and 3-methylpentan-2-ol.
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उत्तर
\[\begin{array}{cc}
\phantom{}\ce{CH3 - CH2 - CH - CH - OH ->[Na] CH3 - CH2 - CH - CH - ONa}\phantom{}\\
\phantom{........................}|\phantom{.........}|\phantom{............................................}|\phantom{.........}|\phantom{...............}\\
\phantom{................}\ce{CH3}\phantom{....}\ce{CH3}\phantom{.....................................}\ce{CH3}\phantom{....}\ce{CH3}\phantom{...}\\
\end{array}\]
\[\ce{C2H5OH ->[HBr] C2H5Br}\]
\[\begin{array}{cc}
\phantom{}\ce{CH3 - CH2 - CH - CH - ONa + C2H5Br}\phantom{}\\
\phantom{.}|\phantom{.........}|\phantom{..........}\\
\phantom{..}\ce{CH3}\phantom{....}\ce{CH3}\phantom{.......}\\
\phantom{}\ce{\downarrow}\phantom{.....}\\
\phantom{}\ce{CH3 - CH2 - CH - CH - OC2H5}\phantom{......}\\
\phantom{.........}|\phantom{.........}|\phantom{..........}\\
\phantom{..........}\underset{\text{2-Ethoxy-3-methylpentane}}{\ce{CH3}\phantom{....}\ce{CH3}}\phantom{.......}
\end{array}\]
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संबंधित प्रश्न
Explain the mechanism of the following reaction:
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:
2-Methoxy-2-methylpropane
Illustrate with examples the limitations of Williamson synthesis for the preparation of certain types of ethers.
Williamson's synthesis of preparing dimethyl ether is a/an ____________.
\[\ce{(CH3)3CONa + CH3CH2Cl ->[-NaCl] (CH3)3COC2H5}\] is called:
Identify the following named reaction
\[\ce{C2H5Br ->[NaOCH3] C2H5OCH3}\]
Williamson's synthesis of ether is an example of ______.
HBr reacts with \[\ce{CH2 = CH - OCH3}\] under anhydrous conditions at room temperature to give ______.
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.
Predict the major product, when 2-methyl but -2-ene is converted into an alcohol in the following method.
Acid catalysed hydration
What will be the product (X and A)for the following reaction
\[\ce{acetylchloride->[i)CH3MgBr][ii)H3O+]X ->[acidk2crp3]A}\]
Write the names of reagents and equations 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 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.
