Synthesis and use of 2,4,4,6-tetrabromo-52-cyclohexadienone as a selective bromo agent with some aromatic amines

الملخص

The object of this research included preparation of 2,4,4,6-tetrabromo- 2,5-
cyclohexadienone as a selective bromination agent to the para-position of amino group in
aromatic amines ,and reactive with different types of aromatic amines at mild condition
reactions.
After this step the electrophilic substitution reactions in brome were achieved at the aromatic
ring of some amines at 0C◦ in presence of chloroform as a solvent .
From bromination process of these compounds (Aromatic amines) were obtained the
following:-
4-Bromodiphenyl amine.
4- Bromo-6-chloro -2- methyl aniline.

4-Bromo-2-chloroaniline.
6- Bromo-2,4-dichloro aniline .
3- Bromo-5-nitro-2-aminopyridine.
Identification of products were achieved by infrared(IR) Spectroscopy and (C.H.N) analysis.