Illustrated Glossary of Organic Chemistry

Alkyl group: A molecular moiety formed by removing a hydrogen atom from an aliphatic sp3 carbon atom. The abbreviation R often, but not always, refers to an alkyl group.




Methane ---> methyl group
    
Ethane ---> ethyl group






2,2-Dimethylpropane ---> Tert-butyl group
Alkyl groups in a molecule