Welcome to CHEM 260! This on-demand course was put together especially for CHEM 260 at UBC. Use the video lessons and notes to understand your lecture topics better, and the practice questions to cement your knowledge. And don't hesitate to leave a question in the Q&A box under each lesson if you need additional help with anything. Happy studying!
CHEM 260
UBC
Course Overview
Lessons & Practice
I. Welcome
2 min1. Course Introduction & Bonding
1.4hr2. Resonance & Stereochemistry
1.5hr3. Acids & Bases
56min3.2.1. Factors Influencing Acid/Base Strength2 min3.2.2. Electronegativity1 min3.2.3. Atom Size2 min3.2.4. Resonance3 min3.2.5. Hybridization3 min3.2.6. Induction3 min3.2.7. Aromaticity3 min3.2.8. Example: Acid/Base Strength 3 min3.2.9. Example: Acid/Base Strength 3 min3.2.10. Practice: Acid/Base Equilibria 2 min3.2.11. Practice: Acid/Base Equilibria 2 min
3.3.1. Important pKas You Should Know4 min3.3.2. Relationship Between pH and pKa2 min3.3.3. Amino Acids at Different pHs3 min3.3.4. Practice: Amino Acids in Solution3 min3.3.5. Practice: Amino Acids in Solution3 min3.3.6. Summary Sheet: Amino Acids in Solution of Various pH3.3.7. Summary Sheet: pKa's of Common Molecules
4. Radical Reactions
30min5. Reactions of Alkanes
59min5.5.1. IUPAC Systematic Naming Theory15 min5.5.2. Example: Converting Names to Structures2 min5.5.3. Example: IUPAC Systematic Naming2 min5.5.4. Example: IUPAC Systematic Naming2 min5.5.5. Practice: IUPAC Systematic Naming2 min5.5.6. Practice: IUPAC Systematic Naming2 min5.5.7. Summary Sheet: IUPAC Naming
6. Unimolecular Reactions (SN1 and E1)
42min7. Reactions of Alkenes
2.2hr8. Reactions of Alkynes
9. Reactions of Aromatics
48min10. Bimolecular Mechanisms (SN2 and E2)
1.4hr11. Reactions of Alcohols
21min11.3.1. SN1/SN2 Reactions of Alkyl Halides (Review)11.3.2. Electrophilic Addition to Alkenes: Acid-catalyzed Hydration (Review)11.3.3. Electrophilic Addition to Alkenes: Hydroboration/Oxidation (Review)11.3.4. Electrophilic Addition to Alkenes: Dihydroxylation (Review)11.3.5. Oxymercuration Reactions (Review)
12. Reactions of the Carbonyl Group
3hr12.4.1. General Reactions with Oxygen Nucleophiles5 min12.4.2. Hydrate Formation1 min12.4.3. Acetal Formation2 min12.4.4. Ketal Formation2 min12.4.5. Hydrolysis of Acetals and Ketals3 min12.4.6. General Mechanism with Oxygen Nucleophiles9 min12.4.7. Stability of Hemiketals and Hemiacetals3 min12.4.8. Practice: Ketals and Acetals as Protecting Groups2 min12.4.9. Practice: Ketals and Acetals as Protecting Groups2 min12.4.10. Example: Synthesis and Hydrolysis of Ketals and Acetals1 min12.4.11. Practice: Mechanism in Acetal and Ketal Formation3 min12.4.12. Practice: Identifying Acetals/Aldehydes2 min
12.6.1. Tautomerization8 min12.6.2. Enolate Formation3 min12.6.3. Kinetic vs. Thermodynamic Enolates5 min12.6.4. The Aldol Reaction3 min12.6.5. Mechanism of the Aldol Reaction5 min12.6.6. The Retro-Aldol Reaction1 min12.6.7. Mixed Aldol Reactions5 min12.6.8. Example: The Aldol Reaction4 min12.6.9. Practice: The Aldol Reaction2 min
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