Convert ethyne to ethanal
Kindly refer to the second part of the following link:
https://www.meritnation.com/ask-answer/question/how-can-u-convert-benzene-to-toulene-and-ethyne-to-ethanal/organic-chemistry-some-basic-principles-and-techniques/3677148
https://www.meritnation.com/ask-answer/question/how-can-u-convert-benzene-to-toulene-and-ethyne-to-ethanal/organic-chemistry-some-basic-principles-and-techniques/3677148