INTOCHEMISTRY / ORGANIC REACTIONS
Organic Reaction Mechanism Learning Center
Learn to choose a pathway, draw chemically correct electron-flow arrows, and predict substitution or elimination products.
4 complete lessons16 curated reactions64 guided checks
SN2
SN2: One-Step Nucleophilic Substitution
Follow electron pairs from nucleophile to electrophilic carbon and out to the leaving group.
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SN1
SN1: Carbocation Substitution
Learn ionization, nucleophilic attack, and deprotonation as a connected mechanism.
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E2
E2: Concerted Elimination
Use beta-hydrogen geometry and three simultaneous electron-flow arrows to form alkenes.
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E1
E1: Carbocation Elimination
Distinguish two-step elimination from SN1 and concerted E2.
Read lesson →Not every reaction has a single exclusive mechanism. Compare substrate, reagent, solvent, temperature, and beta-hydrogen geometry.