Write the reaction equation: Acetylene-Benzene-Nitrobenzene-Aniline-Tribromaniline

We carry out the following chain of reactions: Acetylene-Benzene-Nitrobenzene-Aniline-Tribromaniline.
1) C2H2 – > C6H6.
This reaction takes place under the influence of a temperature of 450 – 500 degrees. As a result, benzene is formed from acetylene.
2) С6Н6 + НNO3 – > С6H5NO2 + H2O.
When benzene reacts with nitric acid, nitrobenzene and water are formed.
3) C6H5NO2 + 6H2 – > C6H5NH2 + 2H2O.
As a result, aniline is formed from nitrobenzene.
4) C6H5NH2 + 3Br2 – > 3HBr + tribromaniline – 2, 4, 6.
Further, tribromaniline is formed from aniline – 2, 4, 6.



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