CHM 2120/2520 (Fall 2019)

CHM2120/2520
Midterm and Exam Tutoring Sessions.
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Final Exam

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Carbonyl and
Imine Chemistry

Review Session Details
  • Learn a simplified mechanism for ALL alcohol oxidations
  • Understand the different reagents used for alcohol oxidations (PCC/PDC, Jones etc.)
  • π-bond electrophile properties: molecular orbitals and reactivity
  • Assessing their electrophilicity of carbonyls and imines
  • Ranking leaving groups for carbonyls
  • Four detailed general mechanisms of carbonyl/imine chemistry in basic and acidic conditions
  • Carbonyls/imines reactions in neutral/basic conditions (includes: Gringard reactions, NaBH4/LiAlH4 reductions, cyanohydrides, saponification, transesterification, amide formation)
  • Carbonyls/imines reactions in acidic conditions (includes: hemi-acetal and acetal formation, imine formation)
  • Learn to provide the major product without a mechanism
  • A guide for complex carbonyl reactions: Wittig, Bayer-Villiger and Wolff-Kishner
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CHM2120/2520: Alcohol Oxidation and Carbonyl Chemistry

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Enolate and
Enamine Chemistry

Review Session Details
  • Assessing the acidity of α-hydrogen on carbonyls
  • Tautomerization of enols/enolates under basic and acidic conditions
  • Understanding kinetic vs. thermodynamic enolates/enamines
  • Know WHEN to do a enolate/enamine reaction instead of attacking the carbonyl
  • Understanding how to use an enolate/enamine against various electrophiles (includes alpha-alkylation and alpha-halogenation)
  • Halogenation in basic and acidic conditions for enolates/enols
  • Reacting enolates/enamines with carbonyls (ex. Aldol reaction/condensation, Claisen reactions)
  • E1cb Elimination in Aldol reactions (Dehydration products)
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CHM2120/2520: Enolate and Enamine Chemistry

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  • Review E2 mechanisms with different bases and conditions
  • Review interpreting/drawing energy diagrams and transition states
  • SN2 mechanism and applying the inversion rule to difficult questions
  • Projecting SN2 reactions in their most stable conformation
  • Differentiating between E2 vs. SN2 vs. E1 vs. SN1
  • Trick questions to help you differentiate between these reactions on your midterm
  • Important reactions from organic chemistry 1 needed for this course explained
  • Relate bonding, non-bonding and antibonding molecular orbitals to E2/E1/SN2 and SN1
  • Many examples from midterms/exams administered at uOttawa!
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December 12, 2020 11:00 AM – 2:30 PM

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Synthesis and
Retrosynthesis

Review Session Details
  • Review of important Organic 1 reactions needed for synthesis and retrosynthesis
  • Reagents for SN and E reactions in synthesis/retrosynthesis
  • Learn to move an alkene group over an alkyl chain
  • Switch between carbonyls during synthesis questions
  • Making retrosynthesis simpler using "reaction scars" technique
  • Exam-like retrosynthesis questions from simple to complex
  • Very helpful tutorial for anyone that needs to learn which reagents to use to make final products from simple starting materials!
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Session Instructor
ABDULLAH AKBAR, PhD

Abdullah is a top-rated tutor with 7+ years of experience in teaching.

As a recent PhD graduate from the University of Ottawa, he has worked along with many of the CHM1311/1711 Professors. His lesson plans will always begin with must-know fundamental concepts and end with examples from previous midterms and final exam questions. Recommended by 200+ uOttawa students. Join one of his review sessions and decide for yourself!