Multiple Choice
Which of the following compounds will undergo elimination the fastest in a basic solution?
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- 1. A Review of General Chemistry5h 6m
- Summary23m
- Intro to Organic Chemistry4m
- Atomic Structure17m
- Wave Function9m
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- Overview of Alpha-Alkylations and Acylations5m
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- Beta-Dicarbonyl Synthesis Pathway7m
- Acetoacetic Ester Synthesis13m
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- 25. Condensation Chemistry2h 9m
- 26. Amines1h 43m
- 27. Heterocycles2h 0m
- Nomenclature of Heterocycles15m
- Acid-Base Properties of Nitrogen Heterocycles10m
- Reactions of Pyrrole, Furan, and Thiophene13m
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- 28. Carbohydrates5h 53m
- Monosaccharide20m
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- Disaccharide30m
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- 29. Amino Acids4h 20m
- Proteins and Amino Acids19m
- L and D Amino Acids14m
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- Acid-Base Properties of Amino Acids33m
- Isoelectric Point14m
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- Synthesis of Amino Acids: Acetamidomalonic Ester Synthesis16m
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- Reactions of Amino Acids: Esterification7m
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- 30. Peptides and Proteins2h 42m
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- 31. Catalysis in Organic Reactions1h 30m
- 32. Lipids 2h 50m
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- Intro to Citric Acid Cycle7m
- Structures of the Citric Acid Cycle19m
- The Citric Acid Cycle35m
- 34. Nucleic Acids1h 32m
- 35. Transition Metals6h 14m
- Electron Configuration of Elements45m
- Coordination Complexes20m
- Ligands24m
- Electron Counting10m
- The 18 and 16 Electron Rule13m
- Cross-Coupling General Reactions40m
- Heck Reaction40m
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- Suzuki Reaction25m
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- Fukuyama Coupling Reaction15m
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- Negishi Coupling Reaction16m
- Buchwald-Hartwig Amination Reaction19m
- Eglinton Reaction17m
- Catalytic Allylic Alkylation18m
- Alkene Metathesis23m
- 36. Synthetic Polymers1h 49m
- Introduction to Polymers6m
- Chain-Growth Polymers10m
- Radical Polymerization15m
- Cationic Polymerization8m
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- Polymer Stereochemistry3m
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- Copolymers6m
- Step-Growth Polymers11m
- Step-Growth Polymers: Urethane6m
- Step-Growth Polymers: Polyurethane Mechanism10m
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- Polymers Structure and Properties8m
31. Catalysis in Organic Reactions
Rates of Intramolecular Reactions
Multiple Choice
Which one of the following compounds cyclizes the fastest in a basic solution?
A
4-bromobutan-1-ol
B
(Z)-4-bromobut-2-en-1-ol
C
(E)-4-bromobut-2-en-1-ol
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Verified step by step guidance1
Understand the concept of cyclization: Cyclization is a chemical reaction where a chain of atoms in a molecule forms a ring. In a basic solution, cyclization often involves nucleophilic substitution or elimination reactions.
Identify the functional groups: Both compounds have a bromine atom and an alcohol group. The bromine atom can act as a leaving group, and the alcohol group can act as a nucleophile.
Consider the stereochemistry: The (Z) and (E) designations refer to the stereochemistry around the double bond. (Z)-4-bromobut-2-en-1-ol has the substituents on the same side, which can influence the proximity of the nucleophile to the leaving group.
Evaluate the reaction mechanism: In a basic solution, the hydroxide ion can deprotonate the alcohol group, making it a better nucleophile. The proximity of the nucleophile to the leaving group in the (Z) isomer can facilitate faster cyclization.
Compare the isomers: The (Z) isomer allows for a more favorable intramolecular reaction due to the spatial arrangement of the groups, leading to faster cyclization compared to the (E) isomer.
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