Advertisements
Advertisements
Question
Preparation of alcohols from alkenes involves the electrophilic attack on alkene carbon atom. Explain its mechanism.
Advertisements
Solution
The mechanism of the reaction involves the following three steps:
Step 1: Protonation of alkene to form carbocation by the electrophilic attack of H3O+.
\[\ce{H2O + H+ -> H3O+}\]
Step 2: Nucleophilic attack of water on carbocation.
Step 3: Deprotonation to form an alcohol.
APPEARS IN
RELATED QUESTIONS
How do you convert the following :
Phenol to anisole
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:
1-Propoxypropane
Illustrate with examples the limitations of Williamson synthesis for the preparation of certain types of ethers.
How is 1-propoxypropane synthesised from propan-1-ol? Write mechanism of this reaction.
Explain the following with an example.
Williamson ether synthesis
Account for the following :
t-butyl chloride on heating with sodium methoxide gives 2-methylpropene instead of t-butyl methyl ether.
Which of the following cannot be made by using Williamson Synthesis:
Explain why low molecular mass alcohols are soluble in water.
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 reagent and equation for the preparation of the following ethers by Williamson’s synthesis:
2-Methoxy-2-methylpropane
What is metamerism? 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 ethers by Williamson’s synthesis:
2-Methoxy-2-methylpropane
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
