Hofmann elimination
E1517141
UNEXPLORED
Hofmann elimination is an organic reaction in which quaternary ammonium hydroxides undergo thermal decomposition to yield alkenes, typically favoring the formation of the less substituted (Hofmann) alkene.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Hofmann elimination canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T22067512 — 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: Hofmann elimination Context triple: [August Wilhelm von Hofmann, knownFor, Hofmann elimination]
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A.
Claisen rearrangement
The Claisen rearrangement is a pericyclic [3,3]-sigmatropic rearrangement in organic chemistry that converts allyl vinyl ethers (or related systems) into γ,δ-unsaturated carbonyl compounds with high stereospecificity.
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B.
Stork–Danheiser rearrangement
The Stork–Danheiser rearrangement is an organic reaction that transforms certain allylic alcohol derivatives into rearranged carbonyl compounds via a sigmatropic shift, widely used in complex molecule synthesis.
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C.
Norrish reaction
The Norrish reaction is a photochemical process in organic chemistry involving the cleavage and rearrangement of carbonyl compounds under ultraviolet light, fundamental to understanding photodegradation and radical mechanisms.
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D.
Barton decarboxylation
Barton decarboxylation is an organic reaction in which carboxylic acids are converted into radicals that lose carbon dioxide, enabling the formation of new carbon–hydrogen or carbon–carbon bonds.
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E.
Eschenmoser–Tanabe fragmentation
The Eschenmoser–Tanabe fragmentation is an organic reaction that cleaves certain α,β-epoxy ketones or related substrates to form carbonyl compounds via a synthetically useful carbon–carbon bond fragmentation.
- 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: Hofmann elimination Target entity description: Hofmann elimination is an organic reaction in which quaternary ammonium hydroxides undergo thermal decomposition to yield alkenes, typically favoring the formation of the less substituted (Hofmann) alkene.
-
A.
Claisen rearrangement
The Claisen rearrangement is a pericyclic [3,3]-sigmatropic rearrangement in organic chemistry that converts allyl vinyl ethers (or related systems) into γ,δ-unsaturated carbonyl compounds with high stereospecificity.
-
B.
Stork–Danheiser rearrangement
The Stork–Danheiser rearrangement is an organic reaction that transforms certain allylic alcohol derivatives into rearranged carbonyl compounds via a sigmatropic shift, widely used in complex molecule synthesis.
-
C.
Norrish reaction
The Norrish reaction is a photochemical process in organic chemistry involving the cleavage and rearrangement of carbonyl compounds under ultraviolet light, fundamental to understanding photodegradation and radical mechanisms.
-
D.
Barton decarboxylation
Barton decarboxylation is an organic reaction in which carboxylic acids are converted into radicals that lose carbon dioxide, enabling the formation of new carbon–hydrogen or carbon–carbon bonds.
-
E.
Eschenmoser–Tanabe fragmentation
The Eschenmoser–Tanabe fragmentation is an organic reaction that cleaves certain α,β-epoxy ketones or related substrates to form carbonyl compounds via a synthetically useful carbon–carbon bond fragmentation.
- F. None of above. chosen
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.