Baeyer strain theory of ring compounds
E701046
The Baeyer strain theory of ring compounds is a historical chemical theory that explains the stability and reactivity of cyclic molecules in terms of angle strain arising from deviations of bond angles from the ideal tetrahedral value.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Baeyer strain theory | 1 |
| Baeyer strain theory of ring compounds canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7866124 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Baeyer strain theory of ring compounds Context triple: [Adolf von Baeyer, knownFor, Baeyer strain theory of ring compounds]
-
A.
The Nature of the Chemical Bond
The Nature of the Chemical Bond is a landmark chemistry book by Linus Pauling that systematically explains chemical bonding using quantum mechanics and became one of the most influential scientific texts of the 20th century.
-
B.
Heitler–London theory of the chemical bond
The Heitler–London theory of the chemical bond is an early quantum mechanical model that explains covalent bonding by treating it as the result of electron exchange and spin pairing between atoms.
-
C.
Woodward–Hoffmann rules
The Woodward–Hoffmann rules are fundamental principles in organic chemistry that predict the stereochemistry and feasibility of pericyclic reactions based on orbital symmetry considerations.
-
D.
Eschenmoser sulfide contraction
Eschenmoser sulfide contraction is an organic rearrangement reaction that converts certain sulfur-containing intermediates into carbonyl compounds, widely used in complex molecule and natural product synthesis.
-
E.
Westheimer rules in physical organic chemistry
Westheimer rules in physical organic chemistry are empirical guidelines that relate molecular structure and substituent effects to reaction rates and mechanisms, helping to rationalize and predict reactivity patterns.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Baeyer strain theory of ring compounds Target entity description: The Baeyer strain theory of ring compounds is a historical chemical theory that explains the stability and reactivity of cyclic molecules in terms of angle strain arising from deviations of bond angles from the ideal tetrahedral value.
-
A.
The Nature of the Chemical Bond
The Nature of the Chemical Bond is a landmark chemistry book by Linus Pauling that systematically explains chemical bonding using quantum mechanics and became one of the most influential scientific texts of the 20th century.
-
B.
Heitler–London theory of the chemical bond
The Heitler–London theory of the chemical bond is an early quantum mechanical model that explains covalent bonding by treating it as the result of electron exchange and spin pairing between atoms.
-
C.
Woodward–Hoffmann rules
The Woodward–Hoffmann rules are fundamental principles in organic chemistry that predict the stereochemistry and feasibility of pericyclic reactions based on orbital symmetry considerations.
-
D.
Eschenmoser sulfide contraction
Eschenmoser sulfide contraction is an organic rearrangement reaction that converts certain sulfur-containing intermediates into carbonyl compounds, widely used in complex molecule and natural product synthesis.
-
E.
Westheimer rules in physical organic chemistry
Westheimer rules in physical organic chemistry are empirical guidelines that relate molecular structure and substituent effects to reaction rates and mechanisms, helping to rationalize and predict reactivity patterns.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
chemical theory
ⓘ
historical scientific theory ⓘ theory of ring strain ⓘ |
| appliesTo |
carbocyclic rings
ⓘ
cyclic compounds ⓘ cyclobutane ⓘ cyclohexane ⓘ cyclopentane ⓘ cyclopropane ⓘ large ring compounds ⓘ medium ring compounds ⓘ small ring compounds ⓘ |
| assumes |
ideal tetrahedral bond angle of 109.5 degrees
ⓘ
planar ring geometry ⓘ |
| basedOn | angle strain ⓘ |
| coreConcept |
deviation of bond angles from ideal tetrahedral value causes strain
ⓘ
ring strain destabilizes cyclic molecules ⓘ ring strain increases chemical reactivity ⓘ |
| explains |
reactivity of cyclic molecules
ⓘ
ring strain in cycloalkanes ⓘ stability of cyclic molecules ⓘ |
| field |
organic chemistry
ⓘ
physical organic chemistry ⓘ |
| historicalImportance | first systematic theory of ring strain ⓘ |
| influenced |
development of conformational analysis
ⓘ
understanding of cycloalkane stability ⓘ |
| introducedBy | Adolf von Baeyer ⓘ |
| languageOfOriginalPublication | German ⓘ |
| limitations |
does not account for steric strain
ⓘ
does not account for torsional strain ⓘ neglects nonplanar conformations ⓘ overestimates strain in larger rings ⓘ |
| namedAfter | Adolf von Baeyer ⓘ |
| predicts |
high strain in four‑membered rings
ⓘ
high strain in three‑membered rings ⓘ increasing strain in rings larger than six members ⓘ low strain in five‑membered rings ⓘ low strain in six‑membered rings ⓘ relative stability of different ring sizes ⓘ |
| proposedBy | Adolf von Baeyer ⓘ |
| publicationYear | 1885 ⓘ |
| refinedBy |
conformational analysis of cyclohexane
ⓘ
modern ring strain theory ⓘ |
| relates | ring size to angle strain ⓘ |
| status | superseded but historically important ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
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Input
Subject: Baeyer strain theory of ring compounds Description of subject: The Baeyer strain theory of ring compounds is a historical chemical theory that explains the stability and reactivity of cyclic molecules in terms of angle strain arising from deviations of bond angles from the ideal tetrahedral value.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Baeyer strain theory of ring compounds