Question

Draw the structure of the organic product or products formed in the following reaction. (AIBN is azobisisobutyronitrile. a radical initiator.)

Answer 1

Concepts and reason

The reaction of a compound is given with N-bromosuccinimide in presence of AIBN. The reaction is known as allylic bromination and thus, attaches a bromine at the allylic position.

Fundamentals

The allylic bromination involves reaction of an alkene with NBS in presence of peroxides, light or heat and therefore, follows a free radical mechanism. is used as a solvent in this reaction. The reaction proceeds via three steps that is initiation, propagation and termination.

The allylic position is as follows:

The initiation step of the reaction is as follows:

The propagation step is as follows:

The termination step is as follows:

Ans:

The structure of the organic products obtained are as follows: