Ch. 8 - Elimination ReactionsWorksheetSee all chapters
All Chapters
Ch. 1 - A Review of General Chemistry
Ch. 2 - Molecular Representations
Ch. 3 - Acids and Bases
Ch. 4 - Alkanes and Cycloalkanes
Ch. 5 - Chirality
Ch. 6 - Thermodynamics and Kinetics
Ch. 7 - Substitution Reactions
Ch. 8 - Elimination Reactions
Ch. 9 - Alkenes and Alkynes
Ch. 10 - Addition Reactions
Ch. 11 - Radical Reactions
Ch. 12 - Alcohols, Ethers, Epoxides and Thiols
Ch. 13 - Alcohols and Carbonyl Compounds
Ch. 14 - Synthetic Techniques
Ch. 15 - Analytical Techniques: IR, NMR, Mass Spect
Ch. 16 - Conjugated Systems
Ch. 17 - Aromaticity
Ch. 18 - Reactions of Aromatics: EAS and Beyond
Ch. 19 - Aldehydes and Ketones: Nucleophilic Addition
Ch. 20 - Carboxylic Acid Derivatives: NAS
Ch. 21 - Enolate Chemistry: Reactions at the Alpha-Carbon
Ch. 22 - Condensation Chemistry
Ch. 23 - Amines
Ch. 24 - Carbohydrates
Ch. 25 - Phenols
Ch. 26 - Amino Acids, Peptides, and Proteins

Solution: Rank the following in decreasing order of leaving group ability.a) I > III > IV > IIb) I > III > II > IVc) III > II > I > IVd) II > I > III > IV

Solution: Rank the following in decreasing order of leaving group ability.a) I > III > IV > IIb) I > III > II > IVc) III > II > I > IVd) II > I > III > IV

Problem

Rank the following in decreasing order of leaving group ability.

a) I > III > IV > II

b) I > III > II > IV

c) III > II > I > IV

d) II > I > III > IV

Solution

We’re being asked to rank the given leaving groups in decreasing order of leaving group ability.



Recall that leaving group ability depends on the stability of a leaving group after gaining a negative charge. This means the factors affecting acidity can be applied as well to leaving groups.


Also, recall that the good leaving groups discussed previously are:

1. Halides

2. Sulfonate Esters

3. Water


View the complete written solution...