Identify the total number of beta-elimination | vedclass

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(C) $\beta$-elimination reaction involves the removal of two atoms or groups from adjacent carbon atoms ($\alpha$ and $\beta$ carbons) to form a multi

Vedclass · Accepted Answer

$5$

Vedclass · Answer

(C) $\beta$-elimination reaction involves the removal of two atoms or groups from adjacent carbon atoms ($\alpha$ and $\beta$ carbons) to form a multiple bond.$(i)$ $CH_3CH_2CH(Cl)CH_3 + Alc. KOH \xrightarrow{\Delta} CH_3CH=CHCH_3 + CH_3CH_2CH=CH_2$: This is a dehydrohalogenation,which is a $\beta$-elimination reaction.(ii) $CH_3CH(Cl)CH(Cl)CH_3 + Zn(dust) \xrightarrow{\Delta} CH_3CH=CHCH_3 + ZnCl_2$: This is a dehalogenation,which is a $\beta$-elimination reaction.(iii) The reaction of a vicinal bromo-methylcyclohexane with $CH_3ONa$ involves the removal of $H$ and $Br$ from adjacent carbons to form an alkene,which is a $\beta$-elimination reaction.(iv) The reaction of a bromo-dimethylcyclohexane with $Alc. KOH$ involves the removal of $H$ and $Br$ from adjacent carbons to form an alkene,which is a $\beta$-elimination reaction.$(v)$ $CH_3CH_2CH(F)CH_3 + OH^- \xrightarrow{\Delta} CH_3CH=CHCH_3 + CH_3CH_2CH=CH_2$: This is a dehydrofluorination,which is a $\beta$-elimination reaction.All five reactions are examples of $\beta$-elimination. Therefore,the total number is $5$.

Identify the total number of $\beta$-elimination reactions in the following processes:

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