Question

Show how, starting from acetylene, you can get benzene first, and then ethylbenzene. Act on the last substance: a) nitric acid; b) hydrogen.

Answer 1

Explanation:

First treat acetylene with red hot iron tube....this will convert it into benzene

Now.. Gatterman reaction

Treat benzene with...ethylchloride in the prsence of Alcl3 which will result in the formation of ethyl benzene.

On treating ethyl benzene with conc HN03

we will get.....para nitro ethyl benzene....

Answer 2

acetylene is passed with red hot tube at 873k temp. gives benzene

benzene reacts with ethyl bromide in presence of AlCl3 gives ethyl benzene

when nitric acid reacts with ethyl benzene then gives 1-ethyl 2-nitro benzene