Advertisements
Advertisements
Question
Predict all the alkenes that would be formed by dehydrohalogenation of the following halide with sodium ethoxide in ethanol and identify the major alkene:
2, 2, 3-Trimethyl-3-bromopentane
Advertisements
Solution
There are two different types of β-hydrogen atoms present in the halide. Hence, in the dehydrohalogenation reaction, it will form two alkenes: 3, 4, 4-trimethylpent-2-ene and 2-ethyl-3, 3-dimethylbut-1-ene. The first alkene is more stable because it is more substituted (according to Saytzeff rule). Hence, it is the major product.
APPEARS IN
RELATED QUESTIONS
Identify the product ‘D’ in the following sequence of reactions:
\[\ce{H3C - CH2 - CH2 - Cl \underset{KOH}{\overset{Alc}{->}} 'B' \overset{HBr}{->} 'C' \underset{Elther}{\overset{Na}{->}}'D'}\]
Identify ‘A’ and ‘B’ in the following reaction :
\[\ce{CH3 - CH = CH2 ->[HBr]'A' ->[alc.KOH]'B'}\]
State and explain Markownikoff's rule with suitable example
Predict all the alkenes that would be formed by dehydrohalogenation of the following halide with sodium ethoxide in ethanol and identify the major alkene:
1-Bromo-1-methylcyclohexane
Predict all the alkenes that would be formed by dehydrohalogenation of the following halide with sodium ethoxide in ethanol and identify the major alkene:
2-Chloro-2-methylbutane
How will you bring about the following conversion?
But-1-ene to but-2-ene
How the following conversion can be carried out?
2-Chloropropane to 1-propanol
How the following conversion can be carried out?
2-Bromopropane to 1-bromopropane
Draw a neat, labelled energy profile diagram for SN1 reaction mechanism.
What are racemates?
'A' is:
The conversion of an alkyl halide into an alkene by alcoholic KOH is classified as ______.
Name the following halides according to IUPAC system and classify them as alkyl, allyl, benzyl (primary, secondary, tertiary), vinyl or aryl halides:
\[\ce{CH3 C(CI) (C2H5)CH2CH3 }\]
A primary alkyl halide would prefer to undergo ______.
Which of the following alkyl halides will undergo SN1 reaction most readily?
An SN1 reaction at the asymmetric carbon of an enantiomerically pure chiral alkyl halide gives a product ______.
