Advertisements
Advertisements
प्रश्न
3, 3-dimethyl butane-2-ol on treatment with conc. H2SO4 to give tetramethyl ethylene as a major product. Suggest a suitable mechanism.
Advertisements
उत्तर
According to Saytzeff’s rule the dehydration of 3, 3-dimethyl butane-2-ol gives a mixture of alkenes. But the secondary carbocation formed in this reaction undergoes rearrangement to form a more stable tertiary carbocation which further, undergoes 13 elimination leads more stable product, that is 2, 3-dimethyl but-2-ene (more yield). According to Saytzeff’s rule, 2, 3-dimethyl pent-2-ene is the major product.
APPEARS IN
संबंधित प्रश्न
In the reaction \[\ce{Ethanol ->[PCl5] X ->[alc. KOH] Y ->[H2SO4/H2O][298 K] Z}\]. The ‘Z’ is
The reaction is an example of
Draw the major product formed when 1-ethoxyprop-1-ene is heated with one equivalent of HI.
What is the major product obtained when two moles of ethyl magnesium bromide is treated with methyl benzoate followed by acid hydrolysis.
Can we use nucleophiles such as NH3, CH3O for the Nucleophilic substitution of alcohols?
Is it possible to oxidise t-butyl alcohol using acidified dichromate to form a carbonyl compound?
Identify A, B, C, D and write the complete equation.
Predict the major product, when 2-methyl but -2-ene is converted into an alcohol in each of the following method.
Acid catalysed hydration
What will be the product (X and A) for the following reaction.
\[\ce{acetylchloride ->[i) CH3MgBr][ii) H3O^+] X ->[acid K2Cr2O7] A}\]
Draw the major product formed when 1-ethoxyprop-1-ene is heated with one equivalent of HI.
