Question

Identify the allylic carbons in each of the following structures. (Click on an atom to select it. Selected atoms will turn green. If you make a mistake, click on the atom again to deselect it.)

Answer 1

Concepts and reason

This problem is based on the concept of allylic carbon atom.

An allylic carbon is the carbon which is present adjacent to a carbon-carbon double bond that is a carbon atom bonded to another carbon atom which in turn is doubly bonded to another carbon atom.

Fundamentals

Allylic bonds are often weaker and therefore more easily broken. The stability of the allylic radical can be utilised in the preparation of Allylic halides. Allylic halides readily undergo substitution reactions via either unimolecular nucleophilic substitution pathway or bimolecular nucleophilic substitution pathway.

Part a

In the given compound, highlighted atoms are allylic carbons. The representation of allylic carbons is given below:

[Part b]

In the given compound, highlighted atoms are allylic carbons. The representation of allylic carbons is given below:

Ans: Part a

The representation of allylic carbons is given below:

Part b

The representation of allylic carbons is given below: