Question 21 Select correct and most relevant mechanism for each of the following reaction. Hint: Review Chapter 11.4. dilute HCI Mechanism A: proton disassosiation dilute H-CI: H3C CH3 nucleophilic attack H₁C:CI: :CI: on CH3 proton transfer and methyl migration (rearrangement) secondary carbanion nucleophilic attack and methyl migration (rearrangement) Mechanism B: proton transfer dilute H-CI: Mechanism C: proton transfer dilute H-CI: Mechanism D: H₁C CH3 secondary carbocation secondary carbocation Θ :CI: H3C CH3 CI: methyl migration (rearrangement) nucleophilic attack H3C CH3 :CI: tertiary carbocation nucleophilic attack nucleophilic attack :CI: CH CH3 :0 : CH3 tertiary carbocation secondary secondary carbocation carbanion proton transfer methyl disassosiation dilute H-CI: proton disassosiation ABCD OD

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Question 21
Select correct and most relevant mechanism for each of the following reaction.
Hint: Review Chapter 11.4.
dilute HCI
Mechanism A:
proton
disassosiation
dilute H-CI:
H3C CH3
nucleophilic attack
and
H&C:CI:
:CI:
on
CH3
proton transfer
methyl migration
(rearrangement)
secondary carbanion
nucleophilic attack and
methyl migration (rearrangement)
Mechanism B:
proton transfer
dilute H-CI:
Mechanism C:
proton transfer
dilute H-CI:
secondary
carbocation
Θ
:CI:
H3C CH3
Mechanism D:
H₂C CH3
secondary
carbocation
:CI:
methyl migration
(rearrangement)
nucleophilic attack
H3C CH3
:CI:
tertiary
carbocation
nucleophilic attack
nucleophilic attack
:CI:
CH
CH3
:0
: CH3
tertiary
carbocation
secondary
carbocation
secondary
carbanion
proton transfer
methyl
disassosiation
dilute H-CI:
proton
disassosiation
ABCD
OD
Transcribed Image Text:Question 21 Select correct and most relevant mechanism for each of the following reaction. Hint: Review Chapter 11.4. dilute HCI Mechanism A: proton disassosiation dilute H-CI: H3C CH3 nucleophilic attack and H&C:CI: :CI: on CH3 proton transfer methyl migration (rearrangement) secondary carbanion nucleophilic attack and methyl migration (rearrangement) Mechanism B: proton transfer dilute H-CI: Mechanism C: proton transfer dilute H-CI: secondary carbocation Θ :CI: H3C CH3 Mechanism D: H₂C CH3 secondary carbocation :CI: methyl migration (rearrangement) nucleophilic attack H3C CH3 :CI: tertiary carbocation nucleophilic attack nucleophilic attack :CI: CH CH3 :0 : CH3 tertiary carbocation secondary carbocation secondary carbanion proton transfer methyl disassosiation dilute H-CI: proton disassosiation ABCD OD
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