Advanced Organic Chemistry Practice Problems File

1,3,5-hexatriene → (product of [1,5] H-shift)

Key concepts

Predict the major stereoisomer formed in the reduction of (S)-2-phenylpropanal using LiAlH4. Draw the Cram, Felkin-Anh, and Polar Felkin-Anh transition states. Explain why the Felkin-Anh model is generally preferred for predicting the diastereoselectivity in this nucleophilic addition. advanced organic chemistry practice problems

Week 1 — Mechanisms & arrow pushing fundamentals Week 2 — Acid–base chemistry, pKa, and reactivity trends Week 3 — Nucleophilic substitution & elimination (SN1, SN2, E1, E2) problems Week 4 — Addition reactions to alkenes/alkynes & radical reactions Week 5 — Conjugation, resonance, aromaticity, and electrophilic aromatic substitution Week 6 — Enolate chemistry, enolates vs. enols, and carbonyl alpha-functionalization Week 7 — Carbonyl reaction families: nucleophilic addition, acyl substitution, reductions, oxidations Week 8 — Pericyclic reactions: cycloadditions, electrocyclizations, sigmatropic shifts (orbital symmetry, FMO) Week 9 — Organometallic reagents & catalytic cycles (Pd, Ni, Cu, organoboranes, organolithium, Grignard) Week 10 — Retrosynthesis: strategy and multi-step planning (protecting groups, chemoselectivity) Week 11 — Spectroscopy & structure determination (1D/2D NMR, IR, MS, UV-Vis) Week 12 — Mixed advanced problems, timed practice, and error analysis 1,3,5-hexatriene → (product of [1,5] H-shift) Key concepts

To develop an interesting feature for advanced organic chemistry practice, focus on . While standard problems provide 2D structures, advanced synthesis often involves spatial constraints—like the formation of "Twistanone"—where 2D drawings fail to convey how distant-looking atoms actually interact at close range. Feature Concept: The "Spatial Logic" Engine Week 1 — Mechanisms & arrow pushing fundamentals