Woodward–Hoffmann rules

set of rules used to rationalize or predict certain aspects of the stereochemistry and activation energy of pericyclic reactions
Intangible group Q899608
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Woodward–Hoffmann rules

Summary

Woodward–Hoffmann rules is a group[1]. It draws 414 Wikipedia views per month (group category, ranking #79 of 392).[2]

Key Facts

  • Woodward–Hoffmann rules's instance of is recorded as group[3].
  • Woodward–Hoffmann rules's instance of is recorded as reaction rule[4].
  • Robert Burns Woodward is named after Woodward–Hoffmann rules[5].
  • Roald Hoffmann is named after Woodward–Hoffmann rules[6].

Body

Definition and Type

Recorded instance of include group[3] and reaction rule[4].

Origins

Things named after include Robert Burns Woodward[5], a chemist[7], 1917–1979[8], of United States[9], awarded the Centenary Prize[10], specialised in organic chemistry[11] and Roald Hoffmann[6], a playwright[12], b. 1937[13], of Second Polish Republic[14], awarded the Nobel Prize in Chemistry[15], specialised in chemistry[16].

Why It Matters

Woodward–Hoffmann rules draws 414 Wikipedia views per month (group category, ranking #79 of 392).[2] It has Wikipedia articles in 17 language editions, a strong signal of global cultural recognition.[17] It is known by 18 alternative names across languages and contexts.[18]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] . wikidata.org.
  2. [4] . wikidata.org.
  3. [5] . wikidata.org.
  4. [6] . wikidata.org.

Inline context (facts about related entities)

  1. [7] . Wikidata. wikidata.org. → on this site
  2. [8] . Wikidata. wikidata.org. → on this site
  3. [9] . Wikidata. wikidata.org. → on this site
  4. [10] . Wikidata. wikidata.org. → on this site
  5. [11] . Wikidata. wikidata.org. → on this site
  6. [12] . Wikidata. wikidata.org. → on this site
  7. [13] . Wikidata. wikidata.org. → on this site
  8. [14] . Wikidata. wikidata.org. → on this site
  9. [15] . Wikidata. wikidata.org. → on this site
  10. [16] . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [17] . Wikidata sitelinks. wikidata.org.
  3. [18] . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Woodward–Hoffmann rules. Retrieved May 3, 2026, from https://4ort.xyz/entity/woodward-hoffmann-rules
MLA “Woodward–Hoffmann rules.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/woodward-hoffmann-rules.
BibTeX @misc{4ortxyz_woodward-hoffmann-rules_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Woodward–Hoffmann rules}}, year = {2026}, url = {https://4ort.xyz/entity/woodward-hoffmann-rules}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Woodward–Hoffmann rules — https://4ort.xyz/entity/woodward-hoffmann-rules (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/woodward-hoffmann-rules · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 8d ago · Nyuhn · 2026-07-10 view diff on Wikidata ↗
    P14541 3zbslV
    Aliases
    Named after
    Instance of group, reaction rule
    + 3 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/40849|batch #40849]]: ZGBK ID"
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