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the claim
Orbital and state correlation diagrams predict the stereochemical course of pericyclic ring-closure.
the verdict
SUPPORTED
the evidence backs this
refutedsupported
the weight of evidence
2 sources for · 0 against

Orbital and state correlation diagrams successfully predict the stereochemical course of pericyclic ring-closure reactions, forming the basis of the Woodward-Hoffmann rules.

Evidence for · 2
Woodward-Hoffmann's Stereochemistry of Electrocyclic Reactions: From Day 1 to the JACS Receipt Date (May 5, 1964 to November 30, 1964).
2015 · cited by 21
The paper details how orbital calculations and symmetry arguments successfully explained and predicted the stereochemistry of electrocyclic reactions.
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The analysis

Papers 1 and 3 directly establish that orbital symmetry rules and correlation diagrams are used to predict and explain the stereochemical outcomes of electrocyclic and pericyclic reactions.

More for · 1
A 21st Century View of Allowed and Forbidden Electrocyclic Reactions.
2024 · cited by 11
The study confirms that correlation diagrams and frontier molecular orbital theory explain the stereoselectivity of pericyclic electrocyclizations.
Everything we examined (12) — 10 independent sources
We also searched for evidence AGAINST this claim, not only for it.
  1. Kenichi Fukui, Frontier Molecular Orbital Theory, and the Woodward‐Hoffmann Rules. Part II. A Sleeping Beauty in Chemistry† **peer-reviewedsame source L1no side takennot shown: read and judged not to bear on this claim
  2. Woodward-Hoffmann's Stereochemistry of Electrocyclic Reactions: From Day 1 to the JACS Receipt Date (May 5, 1964 to November 30, 1964).peer-reviewedsupports
  3. Kenichi Fukui, Frontier Molecular Orbital Theory, and the Woodward‐Hoffmann Rules. Part III. Fukui's Science and Technology, 1918–1965† **peer-reviewedsame source L1no side takennot shown: read and judged not to bear on this claim
  4. A 21st Century View of Allowed and Forbidden Electrocyclic Reactions.peer-reviewedsupports
  5. An argument for abandoning the "allowed" and "forbidden" classification of electrocyclic reactions.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  6. Kenichi Fukui, Frontier Molecular Orbital Theory, and the Woodward‐Hoffmann Rules. Part I. The Person† **peer-reviewedsame source L1no side takennot shown: read and judged not to bear on this claim
  7. Sleeping Beauties in Chemistry. Oosterhoff, Havinga and Schlatmann: Four Years Before “The Woodward‐Hoffmann Rules”† **peer-reviewedno side takennot shown: read and judged not to bear on this claim
  8. Going Beyond Woodward and Hoffmann's Electrocyclizations and Cycloadditions: Sigmatropic Rearrangements.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  9. Woodward and Hoffmann. Hoffmann and Woodward. A Close Collaboration Had Yet to Begin.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  10. Chemical Bonding from the Perspective of <i>In Situ</i> Orbital Correlation.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  11. Woodward and Hoffmann on Secondary Orbital Interactions. How to Make a Fine Two-Course Meal from Leftovers.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  12. Computational Study of Ignored Pericyclic Reactions: Rearrangements of 1,2-Bis(Diazo)Alkanes to 1,2,3,4-Tetrazines and Subsequent Fragmentations.peer-reviewedno side takennot shown: read and judged not to bear on this claim
The paper trail · every fact has a biography
first checked06 Aug 2026
judged → SUPPORTED · 7206 Aug 2026
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