When aniline is treated directly with an excess of aqueous bromine (), a voluminous white precipitate forms rapidly. How many bromine atoms are incorporated into one molecule of this major organic pro

Question

When aniline is treated directly with an excess of aqueous bromine ($Br_2/H_2O$), a voluminous white precipitate forms rapidly. How many bromine atoms are incorporated into one molecule of this major organic product?

Prashant Kotian · Accepted Answer

Correct answer: 3. The group in aniline is a very powerful activating and ortho/para-directing group. Direct bromination using aqueous bromine cannot be stopped at the monosubstitution stage. The reaction proceeds until all active positions are substituted, yielding 2,4,6-tribromoaniline as a white precipitate, which contains exactly 3 bromine atoms.

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