Practice organic chemistry,
at your own pace.

Aromaticity and Huckel's Rule

Apply Huckel's rule: count pi electrons, spot antiaromatic and nonaromatic rings, and track which lone pairs join the pi system.

1H and 13C NMR Basics

Count signals with symmetry, apply the n+1 splitting rule, and place chemical shifts for the common proton environments.

Epoxide Reactions · Pt 1

Work through regioselective epoxide openings driven by acids, heteroatom nucleophiles, hydrides, and organometallic reagents

Epoxide Reactions · Pt 2

Work through regioselective epoxide openings driven by acids, heteroatom nucleophiles, hydrides, and organometallic reagents

Aldehyde and Ketone Reactions · Pt 1

Practice core aldehyde and ketone chemistry—reductions, nucleophilic additions, condensations, and Wittig-type transformations

Aldehyde and Ketone Reactions · Pt 2

Practice core aldehyde and ketone chemistry—reductions, nucleophilic additions, condensations, and Wittig-type transformations

Dienes: Conjugate Addition and Diels-Alder

Kinetic 1,2- vs thermodynamic 1,4-addition to conjugated dienes, plus Diels-Alder products, the s-cis requirement, and stereospecificity.

EAS: Products and Directing Effects

Draw electrophilic aromatic substitution products and predict regiochemistry with activating, deactivating, and ortho/para vs meta directors.

Carboxylic Acids and Derivatives

Interconvert the acyl family: acid chlorides, anhydrides, esters, and amides, with the reactivity order and reduction outcomes.