Organic Chemistry · Beta

Push the arrows yourself.

Fourteen modules, 62 topics and ten mechanisms you perform yourself, with the why on every wrong step.

Open the textbook Perform the SN2 mechanism → How to study ochem →
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Atomic structure

Module 1 · Foundations. The groundwork every later arrow uses.

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Finished concepts come back when they're shakiest, not on a fixed date.

Daily Rounds

A short set each day

A short daily set from what you're closest to forgetting.

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The path through the course

Each leans on the last. Tap one to open its chapter.

Seven tools that do the chemistry, not a lookup.

Push electrons and watch the structure change. Rotate a Newman projection against a live energy curve. Draw a structure, get its ¹H NMR.

Arrow Pusher Resonance Explorer 3D Viewer Conformation Lab Reaction Predictor Acid/Base Comparator Spectroscopy Lab
Open the arrow pusher

Try a step.

Mechanisms are graded one step at a time.

1 Identify the nucleophile and electrophile
2 Draw the electron-pushing arrow
3 Predict the product and stereochemistry
SN2 Arrow step
Hydroxide attacks bromomethane. Where does the arrow start, and where does it end?
A From the C–Br bond to the bromine
B From the hydroxide lone pair to the carbon
C From the carbon to the hydroxide oxygen
D From the bromine lone pair to the carbon
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