Write the IUPAC name of the following compound:

Question

Philoid · Accepted Answer

First we resolve the given compound by marking the carbon atoms and then try to find the parent chain.

We get this

Next we number the carbon atoms in the parent chain.

We see there are 3 carbon atoms in the parent chain, so there must be ‘prop’ in the name.

Also there are 2 substituents. One –CH₃ (methyl) at 2^nd carbon atom and a –Br (bromo) at 3^rd carbon.

Now going alphabetically, higher priority is given to ‘bromo’.

So the IUPAC name stands as

3-bromo-2-methyl propene or 3-bromo-2-methyl prop-1-ene.