How To Name Amines

With secondary and tertiary amines the largest group is chosen as the parent and the other groups are named as substituents. These are the names given in the last row.

Amines Structures And Names

How to name amines.

How to name amines. The number in front denotes what carbon the amine group is attached to. That means that the formula of the primary amine will be rnh 2 where r is an alkyl group. The electronic properties of the substituents alkyl groups enhance the basicity aryl groups diminish it.

The additional nitrogen substituents in 2º and 3º amines are designated by the prefix n before the group name. The degree of solvation of the protonated amine which includes steric hindrance by the groups on nitrogen. Make sure you have an amine and not an amide an amide has a c o attached right beside the n find the longest carbon chain that has n attached to it.

Naming amines can be quite confusing because there are so many variations on the names. Primary amines are named by adding the suffix amine to the alkyl name. An alternative method replaces the terminal e of a hydrocarbon name by the suffix amine to indicate the functional group nh 2.

The basicity of amines depends on. A primary 1 amine has one alkyl or aryl group on the nitrogen atom a secondary 2 amine has two and a tertiary 3 amine has three figure pageindex 1. Let s look at an example.

Use nomenclature systems to name amines. In primary amines only one of the hydrogen atoms in the ammonia molecule has been replaced. These ca names are colored magenta in the diagram.

Number it so that the n is the lowest number possible. Amines are classified according to the number of carbon atoms bonded directly to the nitrogen atom. Finally a common system for simple amines names each alkyl substituent on nitrogen in alphabetical order followed by the suffix amine.

Owing to inductive effects the basicity of an amine might be expected to increase with the number of alkyl groups on the amine.

Amines Structures And Names