QuestionOrganic / halohydrin formation and dehydration
The products [A] and [B] formed in the following reaction sequence are :


- (a) [A] = bromohydrin with OH on C3 and Br on C2 (tertiary); [B] = pinocamphone-type ketone
- (b) [A] = bromohydrin with OH on C3 and Br on C2 (tertiary); [B] = allylic bromide with C3=C4 double bond
- (c) [A] = bromohydrin with Br on C3 and OH on C2 (tertiary); [B] = vinyl bromide with C2=C3 double bond (endocyclic)
- (d) [A] = bromohydrin with Br on C3 and OH on C2 (tertiary); [B] = allylic bromide with exocyclic C=CH₂
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