2,3-dibromobutane can be converted to 2-butyn | vedclass

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(B) For the conversion of $2,3$-dibromobutane to $2$-butyne,the following steps are used:Step $1$: Dehydrohalogenation of $2,3$-dibromobutane using al

Vedclass · Accepted Answer

$(i) \ 	ext{alc. } KOH$ and $(ii) \ NaNH_2$

Vedclass · Answer

(B) For the conversion of $2,3$-dibromobutane to $2$-butyne,the following steps are used:Step $1$: Dehydrohalogenation of $2,3$-dibromobutane using alcoholic $KOH$ yields $2$-bromobut-$2$-ene.$CH_3-CH(Br)-CH(Br)-CH_3 \xrightarrow{	ext{alc. } KOH} CH_3-C(Br)=CH-CH_3 + HBr$Step $2$: Further dehydrohalogenation of $2$-bromobut-$2$-ene using a strong base like $NaNH_2$ yields $2$-butyne.$CH_3-C(Br)=CH-CH_3 \xrightarrow{NaNH_2} CH_3-C \equiv C-CH_3 + NaBr + NH_3$

$2,3$-dibromobutane can be converted to $2$-butyne in a two-step reaction using:

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