E1 Mechanism: Carbocations, Energy Diagrams, and Major Alkene Prediction
Learn the E1 elimination mechanism with an interactive step scrubber: carbocation formation, rearrangements, and Zaitsev product prediction. Includes SN1 vs E1 competition and practice.
Key idea: Same first step as SN1: ionization → carbocation (rate‑determining).
Typical substrates: 3° (best), some 2°; allylic/benzylic
Typical base: Weak base (solvent) often sufficient
Typical conditions: Polar protic solvent + heat
Key features: Rearrangements possible; Zaitsev alkene usually major