Table of contents

1. A Review of General Chemistry5h 5m
2. Molecular Representations1h 14m
3. Acids and Bases2h 46m
4. Alkanes and Cycloalkanes4h 17m
5. Chirality3h 39m
6. Thermodynamics and Kinetics1h 22m
7. Substitution Reactions1h 48m
8. Elimination Reactions2h 30m
9. Alkenes and Alkynes2h 9m
10. Addition Reactions3h 19m
11. Radical Reactions1h 58m
12. Alcohols, Ethers, Epoxides and Thiols2h 42m
13. Alcohols and Carbonyl Compounds2h 17m
14. Synthetic Techniques1h 26m
15. Analytical Techniques:IR, NMR, Mass Spect7h 3m
16. Conjugated Systems6h 13m
17. Ultraviolet Spectroscopy51m
18. Aromaticity2h 34m
19. Reactions of Aromatics: EAS and Beyond5h 1m
20. Phenols55m
21. Aldehydes and Ketones: Nucleophilic Addition4h 56m
22. Carboxylic Acid Derivatives: NAS2h 51m
23. The Chemistry of Thioesters, Phophate Ester and Phosphate Anhydrides1h 10m
24. Enolate Chemistry: Reactions at the Alpha-Carbon1h 53m
25. Condensation Chemistry2h 9m
26. Amines1h 43m
27. Heterocycles2h 0m
28. Carbohydrates5h 53m
29. Amino Acids4h 20m
30. Peptides and Proteins2h 42m
31. Catalysis in Organic Reactions1h 30m
32. Lipids 2h 50m
33. The Organic Chemistry of Metabolic Pathways2h 52m
34. Nucleic Acids1h 32m
35. Transition Metals6h 14m
36. Synthetic Polymers1h 49m

1. A Review of General Chemistry

Intro to Organic Chemistry

Organic Chemistry

1. A Review of General Chemistry

Intro to Organic Chemistry

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Multiple Choice

In the context of organic chemistry, why does stereoselectivity occur during a chemical reaction?

Because of the high temperature used in the reaction.

Due to the presence of chiral centers in the reactants.

Due to the use of non-polar solvents.

Because of the presence of isotopes in the reactants.

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Verified step by step guidance

Understand the concept of stereoselectivity: Stereoselectivity refers to the preference of a chemical reaction to yield one stereoisomer over another. This often occurs in reactions involving chiral centers.

Identify the role of chiral centers: Chiral centers are atoms in a molecule that have four different substituents, leading to non-superimposable mirror images, or enantiomers. The presence of chiral centers in reactants can lead to stereoselectivity.

Consider the influence of reaction conditions: While temperature and solvents can affect reaction rates and mechanisms, they do not inherently cause stereoselectivity. Stereoselectivity is more directly related to the molecular structure, such as the presence of chiral centers.

Evaluate the role of isotopes: Isotopes can affect reaction kinetics due to differences in mass, but they do not typically influence stereoselectivity, which is more about spatial arrangement than atomic mass.

Conclude the primary cause of stereoselectivity: The presence of chiral centers in the reactants is the key factor that leads to stereoselectivity in a chemical reaction, as it determines the spatial arrangement of atoms and the resulting stereoisomers.