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PES of the S N 2 and S N 1 mechanism

PES of the S N 2 and S N 1 mechanism. Figure 2.1.2‑2. Elimination. Elimination: One molecule is cleavaged into two molecule PT: Proton Transfer, LGE: Leaving Group Explusion Mechanisms E1 : leaving group (X) cleavage first) E2 : The H and the X is cleavaging simultaneously

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PES of the S N 2 and S N 1 mechanism

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  1. PES of the SN2 and SN1 mechanism Figure 2.1.2‑2..

  2. Elimination • Elimination: • One molecule is cleavaged into two molecule • PT: Proton Transfer, LGE: Leaving Group Explusion • Mechanisms • E1 : leaving group (X) cleavage first) • E2 : The H and the X is cleavaging simultaneously • E1cb : H cleaved first (cb: conjugated base) The elimination reactions are often competing with substitution because of tight similarity

  3. Compiting reaction ways 1,2 E SN2 A schematic illustration of two extreme cases: E2 is favoured over E1 (left hand side) and E1 is favoured over E2 (right hand side). It is assumed that under ordinary circumstances E1cb is the least favoured mechanism.

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