Question

How will you convert ethyne to ethanal ?

Answer 1

Ethyne can be converted into ethanal by the reaction of ehyne with 40%$H_{2}S{O}_4$ and 1%$HgS{O}_4$. In this reaction, the hydration of the ethyne group takes place followed by the tautomerism to form ethanal as a product.

$CH\equiv CH\underset{\left(i\right)\%HgS{O}_4}{\overset{40\%H_{2}S{O}_4}{\to }}C{H}_{3}CHO$