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

3. Acids and Bases

Organic Chemistry Reactions

Organic Chemistry

3. Acids and Bases

Organic Chemistry Reactions

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Multiple Choice

Which of the following reagents is necessary for the oxidation of a primary alcohol to an aldehyde in organic chemistry reactions?

Potassium permanganate (KMnO4)

Sodium borohydride (NaBH4)

Lithium aluminum hydride (LiAlH4)

Pyridinium chlorochromate (PCC)

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Verified step by step guidance

Identify the functional group present in the starting material, which is a primary alcohol. A primary alcohol has the general structure RCH2OH, where R is an alkyl group.

Understand the desired transformation, which is the oxidation of a primary alcohol to an aldehyde. This involves the removal of two hydrogen atoms from the alcohol, forming a carbonyl group (C=O) in place of the hydroxyl group (OH).

Recognize that not all oxidizing agents are suitable for this transformation. Strong oxidizing agents like potassium permanganate (KMnO4) will further oxidize the aldehyde to a carboxylic acid, which is not desired in this case.

Consider the properties of pyridinium chlorochromate (PCC), which is a milder oxidizing agent. PCC is known for its ability to oxidize primary alcohols to aldehydes without further oxidation to carboxylic acids.

Conclude that pyridinium chlorochromate (PCC) is the appropriate reagent for selectively oxidizing a primary alcohol to an aldehyde, as it provides the necessary control over the oxidation process to stop at the aldehyde stage.