SN2

One step, from the back

An interactive lesson with 5 steps, about 5 minutes: you predict, drag and solve, with instant feedback on every answer. It runs in your browser and needs JavaScript.

What you’ll learn

• SN2: nucleophile in, leaving group out, in one step.
• Backside attack inverts the stereocentre.
• Rate = k[Nu][RX]; methyl > primary > secondary ≫ tertiary.

Steps

1. Swap in one move
2. Hydroxide meets bromomethane
3. Inside out
4. Crowding slows it down
5. Rate law