Advertisements
Advertisements
प्रश्न
Write the reactions of Williamson synthesis of 2-ethoxy-3-methylpentane starting from ethanol and 3-methylpentan-2-ol.
Advertisements
उत्तर
\[\begin{array}{cc}
\phantom{}\ce{CH3 - CH2 - CH - CH - OH ->[Na] CH3 - CH2 - CH - CH - ONa}\phantom{}\\
\phantom{........................}|\phantom{.........}|\phantom{............................................}|\phantom{.........}|\phantom{...............}\\
\phantom{................}\ce{CH3}\phantom{....}\ce{CH3}\phantom{.....................................}\ce{CH3}\phantom{....}\ce{CH3}\phantom{...}\\
\end{array}\]
\[\ce{C2H5OH ->[HBr] C2H5Br}\]
\[\begin{array}{cc}
\phantom{}\ce{CH3 - CH2 - CH - CH - ONa + C2H5Br}\phantom{}\\
\phantom{.}|\phantom{.........}|\phantom{..........}\\
\phantom{..}\ce{CH3}\phantom{....}\ce{CH3}\phantom{.......}\\
\phantom{}\ce{\downarrow}\phantom{.....}\\
\phantom{}\ce{CH3 - CH2 - CH - CH - OC2H5}\phantom{......}\\
\phantom{.........}|\phantom{.........}|\phantom{..........}\\
\phantom{..........}\underset{\text{2-Ethoxy-3-methylpentane}}{\ce{CH3}\phantom{....}\ce{CH3}}\phantom{.......}
\end{array}\]
APPEARS IN
संबंधित प्रश्न
Explain the mechanism of the following reaction:

How do you convert the following :
Phenol to anisole
Write the equations involved in the following reactions : Williamson synthesis
Which of the following is an appropriate set of reactants for the preparation of 1-methoxy-4-nitrobenzene and why?
![]() |
![]() |
| (i) | (ii) |
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 equation for the preparation of the following ethers by Williamson’s synthesis:
1-Methoxyethane
How is 1-propoxypropane synthesised from propan-1-ol? Write mechanism of this reaction.
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:
Preparation of alcohols from alkenes involves the electrophilic attack on alkene carbon atom. Explain its mechanism.
Identify the following named reaction
\[\ce{C2H5Br ->[NaOCH3] C2H5OCH3}\]
HBr reacts with \[\ce{CH2 = CH - OCH3}\] under anhydrous conditions at room temperature to give ______.
Write the name of 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.
What will be the product (X and A)for the following reaction
\[\ce{acetylchloride->[i)CH3MgBr][ii)H3O+]X ->[acidk2crp3]A}\]
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 ethers 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 ether by Williamson’s synthesis:
2-Methoxy-2-methylpropane


