Course id: 80331

SN/E Competition - Role of the Temperature

First, this learning unit describes the mechanistic reasons for the competition of elimination and nucleophilic substitution. Then, the influence of the reaction temperature on the SN2/E2 competition as well as the SN1/E1 competition is discussed.

Learning objectives

  • Fundamentals of the competition of elimination and nucleophilic substitution.
  • Parameters that influence the SN2/E2 competition.
  • Parameters that influence the SN1/E1 competition.
  • Prediction of the predominant reaction mechanism depending on the different parameters.

Categorization

Learning Time: 20 min

Level of Difficulty: high

Requirements

  • Reactions and mechanisms of elimination and nucleophilic substitution.
  • SN1/SN2 competition.
  • E1/E2 competition.

Continuative Learning Units

Keywords

nucleophilic substitution, elimination, beta elimination, competition, transition state, energy, reaction rate, Hammond postulate, entropy, translational entropy, reaction entropy, reaction temperature, thermodynamic driving force, Gibbs energy

Authors

Dr. Carsten Biele | Prof. Dr. Gregor Fels

Translators: Dr. Carsten Biele

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Topic
MenuitemEncyclopedia
MenuitemChemistry
MenuitemOrganic Chemistry
MenuitemSubstitution Reactions
Learning Unit
Page
Overview
PageSN/E Competition
PageSN/E Competition - Rolle der Temperatur
PageExercises A: SN/E Competition
PageExercises B: SN/E Competition
PageAppendix
Wiley-VCH