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Nomenclature

The alkyne wh...

Question

The alkyne which gives above ketone as the only product after hydration with $H_{2} O, H_{2} S O_{4}$ and $H g S O_{4}$ is $x$ -cyclohexylethyne. What is x?

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Solution

1-cycloethyne on hydration with $H_{2} O$ and $H g S O_{4}$ forms corresponding enol which undergoes rearrangement to form corresponding ketone.
Thus here value of $x$ is 1.

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