X (Symmetrical alkyne) xrightarrow{Hg^{2+}/H_ | vedclass

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(A) The hydration of a symmetrical alkyne $X$ using $Hg^{2+}/H_3O^{+}$ yields $2-$butanone. However,hydration of a symmetrical alkyne like $2-$butyne

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$CH_3-CCl_3$

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(A) The hydration of a symmetrical alkyne $X$ using $Hg^{2+}/H_3O^{+}$ yields $2-$butanone. However,hydration of a symmetrical alkyne like $2-$butyne $(CH_3-C\equiv C-CH_3)$ would yield $2-$butanone. To obtain $2-$butyne from $Ag$ powder,we use the reaction of $1,1,1-$trichloroethane $(CH_3-CCl_3)$ with $Ag$ powder,which is a dehalogenation reaction: $2 CH_3-CCl_3 + 6 Ag \rightarrow CH_3-C\equiv C-CH_3 + 6 AgCl$. Thus,the compound $X$ is $2-$butyne,and it is formed from $CH_3-CCl_3$.

$X$ (Symmetrical alkyne) $\xrightarrow{Hg^{2+}/H_3O^{+}}$ $2-$butanone. Which compound reacts with $Ag$ powder to give $X$?

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