Functional Groups
Alkane (Alkyl)

Alkene (Alkenyl)

Alkyne (Alkynyl)

Phenyl

Alcohol (Hydroxyl/Hydroxyl)

Ether

Epoxide

Amine

Imine

Enamine: 2 Amine + Aldehyde or ketone

Nitrile/Isonitrile (Cyano)

Carbonyl

Aldehyde - Carbonyl group attached to a carbon atom at the end of a carbon chain.

Ketone - Both Rs are carbon

Ester

Carboxylic Acid
