(a)
Interpretation:
The stereoisomer that would be formed in greatest yield in E2 reaction from the given alkyl halide has to be indicated.
Concept Introduction:
Elimination Reaction: It is just reverse reaction of addition where substituent from the given molecule is removed via E1 (the reaction depends only on the substrate involved in the reaction) or E2 (the reaction depends on both base and substituents in the reaction) mechanism.
Elimination reaction of an alkyl halide results in the formation of an
Relative relativities of alkyl halide in an E2 reaction are
If the product obtained after E2 reaction has both E and Z stereoisomers, then E-isomer is the major product.
If the two largest groups in a molecule are in same side of the double bond, then it is called as Z-isomer.
If the two largest groups in a molecule are in opposite side of the double bond, then it is called as E-isomer.
(a)
Interpretation:
The stereoisomer that would be formed in greatest yield in E2 reaction from the given alkyl halide has to be indicated.
Concept Introduction:
Elimination Reaction: It is just reverse reaction of addition where substituent from the given molecule is removed via E1 (the reaction depends only on the substrate involved in the reaction) or E2 (the reaction depends on both base and substituents in the reaction) mechanism.
Elimination reaction of an alkyl halide results in the formation of an alkene.
Zaitsev’s rule: In elimination reaction, when one hydrogen atom is removed from
Relative relativities of alkyl halide in an E2 reaction are
If the product obtained after E2 reaction has both E and Z stereoisomers, then E-isomer is the major product.
If the two largest groups in a molecule are in same side of the double bond, then it is called as Z-isomer.
If the two largest groups in a molecule are in opposite side of the double bond, then it is called as E-isomer.

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Chapter 8 Solutions
Essential Organic Chemistry, Global Edition
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