Reaction Mechanisms
Natural Sciences · Advanced · Lesson 4 of 8

SN1 & Carbocations

Leave first, then attack

An interactive lesson with 7 steps, about 6 minutes: you predict, drag and solve, with instant feedback on every answer. It runs in your browser and needs JavaScript.

What you’ll learn

  • SN1: leaving group leaves (slow), then nucleophile attacks.
  • Rate = k[RX]; carbocation stability tertiary > secondary > primary > methyl.
  • Flat carbocation → racemic product.

Steps

  1. Two steps
  2. Step 1: the bromide leaves
  3. Step 2: water attacks
  4. Two hills to climb
  5. Carbocation stability
  6. Flat in the middle
  7. Which mechanism?