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प्रश्न
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
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उत्तर
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 the Saytzeff rule). Hence, it is the major product.
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संबंधित प्रश्न
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?
Write the main products when n-butyl chloride is treated with alcoholic KOH.
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
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-Chloropropane to 1-propanol
How the following conversion can be carried out?
2-Bromopropane to 1-bromopropane
'A' is:
Elimination of bromine from 2-bromobutane results in the formation of ______.
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 ______.
Major products A and B formed in the following reaction sequence are:
