The sum of the number of alpha-hydrogen atoms | vedclass

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Question

(C) The reaction involves the acid-catalyzed dehydration of alcohols to form alkenes.For compound $A$: The dehydration of $1,2$-dimethylcyclohexanol g

Vedclass · Accepted Answer

$20$

Vedclass · Answer

(C) The reaction involves the acid-catalyzed dehydration of alcohols to form alkenes.For compound $A$: The dehydration of $1,2$-dimethylcyclohexanol gives $1,2$-dimethylcyclohexene as the major product. This alkene has $10$ $\alpha$-hydrogen atoms ($3$ from each methyl group and $2$ from each adjacent $CH_2$ group).For compound $B$: The dehydration of $1$-isopropylcyclohexanol gives $1$-isopropylidenecyclohexane. This alkene has $10$ $\alpha$-hydrogen atoms ($6$ from the two methyl groups on the isopropylidene side chain and $4$ from the adjacent $CH_2$ groups of the cyclohexane ring).The sum of $\alpha$-hydrogen atoms in $A + B = 10 + 10 = 20$.

The sum of the number of $\alpha$-hydrogen atoms present in compounds $A$ and $B$ is:

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