Question

The iupac name of the following compound

Answer 1

First thing first, the longest chain has already been mentioned i.e. 6 membered carbon.  So the hydrocarbon chain would be hexa.

Then there is no saturation and the main the functional group is amide is the carbon chain will be named hexanamide.

next the functional group are cyano. There is one ethyl group attached at 3 position and one attached to nitrogen.

So we add

5-cyano-N-ethyl-3-ethyl hexanamide