Simple tips and mnemonics to help you learn Organic Chemistry concepts

Organic chemistry Mnemonics

In this post we have collected a list of Organic chemistry Mnemonics for you from  various sources to help you make your study biology easier. We hope these Organic chemistry study tips will save you some time and help you study of Organic chemistry better.

Learning new concepts in Organic chemistry  can be difficult but with the help of some cleverly formed mnemonics studying Organic chemistry  can be made easy.

Remember you can develop your own Organic chemistry Mnemonics or modify the ones we have provided to help you better learn Organic chemistry. Mnemonics are meant to help you remember long term and not just memorize for a test and forget about it. If you take the time to practice these Organic chemistry Mnemonics, they will help you build strong fundamentals of organic chemistry and build a lifetime understanding of some of the most important concepts of Organic chemistry.


  • Addition of Amine to Carbonyl GroupCis/trans (Geometric) IsomersConformationsIsomersMeso CompoundsNMRMeta-Directing Groups on a Benezene RingOrtho- and Para- Directing Groups on a Benezene RingTypes of Reactions
    • “SE PI” (or “SEe PIe”)
      • Secondary amine Enamine 
      • Primary amine Imine
      • (Note: tertiary and quaternary amines do not react with the C=0 group.)
    • “Z: Zame Zide
      E: Epposite”

      • Z for same side and E for opposite sides
    • Gauche conformation: It’s “gauche” (inappropriate) forone methyl group to stand too close to another group. Cyclohexane ring: When you have low energy, you sitdown in a “CHAIR” to rest. “BOATS” can be tippy, so they are less stable.
    • “SS – ED – CC”
    • Isomers of a sugar: If the second lowest -OH is on the Left, the molecule is L.
      If the -OH is on the Right, it’s D.
    • MeSo compounds have a Mirror of Symmetry”
      • Thus, even though they may have stereogenic centers, they are achiral and so do not have enantiomers.
    • Downfield is Deshielded.
    • “Queen Elizabeth Second’s Navy Commands, Controls, Communicates”
      • Q Quaternary amino -NR3+
        E Ester -COOR
        S Sulfonic acid -SO3H
        N Nitro -NO2
        C Carbonyl -CHO
        C Carboxyl -COOH
        C Cyano -CN
    • “AHA AHA P”
      • A Alkyl -R
        H Halogen -X
        A Alkoxyl -ORA Amino -NH2, -NHR, -NR2 (not -NR3+)
        H Hydroxyl -OH
        A Amide -NHCOR
        P Phenyl -C6H5
    • “SEA MOuRNS CANned PEAs”
      • Substitution Electrophilic – Aromatic
        Most Other Reactions – Nucleophilic Substitution
        Carbonyl – Addition Nucleophilic
        Pi bonds – Electrophilic Addition

Positions of substitutuion

  • ortho, meta, para: ontop of the world, middle class, or in povert


Carboxylic acids

  • Common names of homogeneous aliphatic carboxylic acids,
    Formic, Acetic, Propionic, Butyric, Valeric, Caproic

    Dicarboxylic acids

    The sequence of dicarboxylic acids can be remembered with following mnemonics.

    Oxalic, Malonic, Succinic, Glutaric, Adipic, Pimelic, Suberic, Azelaic, Sebacic

    Aromatic compounds

    m-directing groups

    Quaternary amino Ester Sulfonic acid Nitro Carbonyl Carboxyl Cyano
    (-NR3+) (-COOR) (-SO3H) (-NO2) (-CHO) (-COOH) (-CN)

    o,p-directing groups

    Alkyl Halogen Alkoxyl Amino Hydroxyl Amide Phenyl
    (R) (X) (OR) (-NH2 -NHR -NR2) (OH) (NHCOR (C6H5)

    Note: -NH2,-NHR and NR2 are para directing groups but not -NR3+

    • Frogs Are Polite, Being Very Courteous
    • OMSuch, Good Apples[22]
    • OMStars, Green Apples
    • OMy, Such Good Apple Pi.e., Sweet ASugar
    • Queen Elizabeth Second’s Navy Commands, Controls, Communicates
    • AHA AHA P

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