Alkane
has only single bonded carbons and hydrogens
Alkene
Alkyne
Alcohol
Ether
Ester
Amine
Aldehyde
Ketone
Alkoxy
Carbonyl
Hydroxyl
Acetyl
Gem-
Mesyl
Carboxylic Acid
Amide
Anhydride
Aryl
Benzyl
Hydrazine
Vinyl
Allyl
Nitrile
Epoxide
Enamine
Acyl
Aromatic
Aliphatic
non aromatic compound
Sulphone
Nitro
Acetal
Ketal
Hemiacetal
Hemiketal
Alkyl
Vic-
Imine
Tosyl
sec-butyl
isopropyl
isobutyl
tert-butyl