Concept explainers
(a)
Interpretation:
The mechanism with appropriate arrows showing the conversion of intermediate A to B through two
Concept introduction:
Carbocation intermediate can rearrange to become more stable via two possible rearrangements,
(b)
Interpretation:
The mechanism with appropriate curved arrows showing the conversion of intermediate B to Lanosterol is to be drawn.
Concept introduction:
The Carbocation intermediate rearrangement is followed by electrophilic elimination resulting in the formation of C=C bond.
Two curved arrows are needed to show electrophilic elimination. The first curved arrow originates from the base to the electrophile, and the second arrow is drawn from the electrophile to the mid of the C-C bond where C=C bond is formed.
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EBK ORGANIC CHEMISTRY: PRINCIPLES AND M
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