🎓 Second-semester organic chemistry · AP-equivalent rigor

Master Organic Chemistry 2

Second-semester organic chemistry at AP-equivalent rigor — pericyclic reactions, the full aromatic/carbonyl/acyl-substitution machinery, enolate condensations, biomolecules, advanced 2D NMR, and full retrosynthetic planning. Includes a 1–5 AP-equivalent score predictor.

Start with Diagnostic View 1–5 Score Predictor Browse Lessons

Need to review fundamentals? ← Back to Organic Chemistry 1

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6 units · 17 topics

Interactive Lessons

Step-by-step coverage of all OChem 2 topics including pericyclic reactions, aldol/Claisen, Michael/Robinson, NAS, phenols, advanced 2D NMR, and retrosynthesis.

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~30 questions · 25 min

Diagnostic Test

Benchmark your performance across the OChem 2 curriculum.

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1–5 scale · live updates

AP-Equivalent Score Predictor

Convert your performance into an AP-equivalent 1–5 score, the way AP Chemistry students are scored.

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Mechanisms · Biomolecules

Flashcards

Named reactions, mechanisms, and biomolecule structures for OChem 2.

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New daily

Daily Question

A fresh organic question every day — keep advanced mechanisms sharp.

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Per topic · Instant feedback

Exit Quizzes

Per-lesson assessments confirm mastery before you advance.

Organic Chemistry 2 Curriculum

6 units · 17 topics · expanded for AP-equivalent depth

Unit 1 · Conjugation, Pericyclic & Aromatics

Conjugated dienes; 1,2 vs 1,4 addition
Diels-Alder & pericyclic reactions (FMO)
Aromaticity & Hückel's rule
EAS: directing & activating effects
Nucleophilic Aromatic Substitution (SNAr & benzyne)
Phenols & quinones

Unit 2 · Carbonyls & Acyl Substitution

Aldehydes & ketones (NaBH₄, Grignard, Wittig, acetals)
Carboxylic acid derivatives & their reactivity ladder

Unit 3 · Enolates & α-Substitution

Enol/enolate formation; LDA kinetic enolates
Aldol & Claisen condensations (incl. Dieckmann)
Michael addition & Robinson annulation

Unit 4 · Amines & Nitrogen Chemistry

Amine basicity, synthesis, alkylation/acylation
Diazonium salts & Sandmeyer chemistry

Unit 5 · Biomolecules

Carbohydrates (Fischer/Haworth, anomers, glycosides)
Amino acids, peptides & protein structure
Lipids & nucleic acids

Unit 6 · Advanced Spectroscopy & Synthesis

Advanced & 2D NMR: DEPT, COSY, HSQC, HMBC, NOESY
Multi-step synthesis & retrosynthetic analysis (synthons, FGI, protecting groups)

About the AP-Equivalent Score (1–5)

Organic Chemistry 2 is taught at AP-equivalent depth. The score predictor blends 70% quiz performance and 30% topic mastery rate, then maps the result onto the same 1–5 scale used for AP Chemistry — so you can interpret your standing the way you would for any other AP science.

• 5 — Top performance (≥ 85%): synthesis-ready, exam-confident.
• 4 — Strong (≥ 70%): solid mechanisms; refine spectroscopy.
• 3 — Passing (≥ 55%): foundational; rebuild carbonyl/aromatic chemistry.
• 2 — Below passing (≥ 35%): focused remediation needed.
• 1 — Beginning (< 35%): work through the lessons end-to-end.

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