Fundamental of organic chemistry

1. Functional group priority

1.1. Carboxylic acid

1.1.1. COOH

1.2. Ester linkage

1.2.1. COOR

1.3. Acid halidie

1.3.1. COX

1.4. Acid amide

1.4.1. CONH2

1.5. Cyno (nitrile)

1.5.1. CN

1.6. Aldehyde (formyl)

1.6.1. CHO

1.7. Ketone (Carbonyl)

1.7.1. R2CO or (CO)

1.8. Hydroxyl (alcohol, phenol, Alkanol)

1.8.1. OH

1.9. Amino group (amine )

1.9.1. NH2

1.10. Ether linkage

1.10.1. R-O-R

1.11. Alkene

1.11.1. C=C

1.12. Alkyne

1.12.1. C_=C