1. Tardigrade
  2. Question
  3. Chemistry
  4. An azo compound X is cleaved at the azo linkage by stannous chloride, SnCl2 to form two amines, 3-bromo- 4-amino toluene and 2-methyl-4-aminophenol. A +B→ X Which of the following is the suitable combination of A and B?

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Q. An azo compound $X$ is cleaved at the azo linkage by stannous chloride, $SnCl_2$ to form two amines, 3-bromo- 4-amino toluene and 2-methyl-4-aminophenol. $A +B\to X$ Which of the following is the suitable combination of A and B?

Amines

Solution:

For the coupling reaction, diazonium ion should contain some electron withdrawing groups and the other compound should have electron releasing groups, i.e. should behave like a good nucleophile. Thus,
image
Formation of 3-bromo-4-amino toluene and 2-methyl-4- amino phenol also support these structures for A and B.