Question

Give two names for each of the following nitriles:

Short answer

1. Butane nitrile

2. 4-methyl pentanenitrile

Step-by-step solution

IUPAC nomenclature

It is a method to give a scientific name to the organic compounds recommended by the International Union of Pure and Applied Chemistry.

Nomenclature of nitrile:

IUPAC rules used for naming of nitrile

• Name the parent chain

• Assign numbering to the substituents

• Assign the first number to the bulky group

• nitrile gets the first priority

• Write the name of the molecule in alphabetic

• Suffix nitrile is used

Naming of nitrile a

The compound has 4 carbon so the parent chain is butane and the nitrile group is present at the 1stposition so the name is butane nitrile.

Naming of nitrile b

As per the molecule select the longest carbon chain that is of 5 carbon so that the parent chain is pentane and the methyl substituent is present at 4thposition and the nitrile gets 1st position so the naming is 4-methyl pentane nitrile.