Organic · Pericyclic Reactions
Pericyclic Reactions
Exam-focused revision notes on Pericyclic Reactions for CSIR-NET Chemical Sciences, GATE Chemistry and IIT-JAM — the core concepts, the formulas worth memorising, the traps that cost marks, and a quick-recall table.
The core idea
Reactions that go through a cyclic transition state with no intermediates — concerted, single-step and stereospecific. Their outcome is fixed by orbital symmetry, and it flips between thermal and photochemical conditions.
What this note covers
- 1The core idea
- 2Electrocyclic reactions
- 3Cycloaddition reactions
- 4Sigmatropic rearrangements
- 5Common traps students miss
- 6Woodward–Hoffmann selection rules (recall table)
Read the full note
The remaining 5 sections — including the worked examples, the common-traps list and the quick-recall table — are part of ChemVidya Full Access, along with 6,000+ practice questions.
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