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Questions
Write the main products when n-butyl chloride is treated with alcoholic KOH.
What happens when n-butyl chloride is treated with alcoholic KOH?
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Solution
When n-butyl chloride is treated with alcoholic KOH, but-1-ene forms. This reaction is an example of β-hydrogen elimination brought about by C2H5O−.
\[\ce{\underset{n-Butylchloride}{CH3 - CH2 - CH2 - CH2 - Cl}->[alc{.} KOH]\underset{But-1-ene}{CH3 - CH2 - CH = CH2}}\]
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
How do you convert:
2-bromobutane to but-2-ene
How will you bring about the following conversion?
But-1-ene to but-2-ene
Write the structure of the major organic product in the following reaction:
\[\ce{(CH3)3CBr + KOH ->[ethanol][heat]}\]
How the following conversion can be carried out?
1-Bromopropane to 2-bromopropane
How the following conversion can be carried out?
2-Bromopropane to 1-bromopropane
What are racemates?
Observe the following compounds and answer the questions given below.
(I)
\[\ce{\underset{\text{(II)}}{CH3 - CH2 - Br}}\]
- Identify the type of halides.
- Explain the nature of the C – Br bond in both of these halides.
- Which of these compounds will undergo aqueous alkaline hydrolysis readily? Write the reaction in support of your answer.
Deamination of meso- di bromobutane gives mainly:-
Identify the major product formed when 2-cyclohexylchloroethane undergoes a dehydrohalogenation reaction. Name the reagent which is used to carry out the reaction.
Elimination of bromine from 2-bromobutane results in the formation of ______.
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:
\[\ce{CH3 C(CI) (C2H5)CH2CH3 }\]
Reaction of trans-2-phenyl-1-bromocyclopentane with alcoholic KOH produces.
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 ______.
