Ullmann reaction
E1174549
UNEXPLORED
The Ullmann reaction is a classic copper-catalyzed cross-coupling process that forms carbon–heteroatom or carbon–carbon bonds, historically important in aryl ether and amine synthesis.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Ullmann reaction canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T15733033 — 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: Ullmann reaction Context triple: [Buchwald–Hartwig amination, relatedTo, Ullmann reaction]
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A.
Chichibabin reaction
The Chichibabin reaction is an organic chemistry transformation that introduces an amino group into heteroaromatic compounds, especially pyridines, using sodium amide.
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B.
Heck reaction
The Heck reaction is a palladium-catalyzed cross-coupling between alkenes and aryl or vinyl halides, widely used in organic synthesis to form carbon–carbon bonds.
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C.
Buchwald–Hartwig amination
The Buchwald–Hartwig amination is a palladium-catalyzed cross-coupling reaction that forms carbon–nitrogen bonds by coupling aryl (or vinyl) halides with amines, widely used in the synthesis of pharmaceuticals and fine chemicals.
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D.
Kumada coupling
Kumada coupling is a palladium- or nickel-catalyzed cross-coupling reaction between Grignard reagents and organic halides used to form carbon–carbon bonds in organic synthesis.
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E.
Michaelis–Arbuzov reaction
The Michaelis–Arbuzov reaction is an organic transformation in which trialkyl phosphites react with alkyl halides to form phosphonates, widely used in the synthesis of organophosphorus compounds.
- 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: Ullmann reaction Target entity description: The Ullmann reaction is a classic copper-catalyzed cross-coupling process that forms carbon–heteroatom or carbon–carbon bonds, historically important in aryl ether and amine synthesis.
-
A.
Chichibabin reaction
The Chichibabin reaction is an organic chemistry transformation that introduces an amino group into heteroaromatic compounds, especially pyridines, using sodium amide.
-
B.
Heck reaction
The Heck reaction is a palladium-catalyzed cross-coupling between alkenes and aryl or vinyl halides, widely used in organic synthesis to form carbon–carbon bonds.
-
C.
Buchwald–Hartwig amination
The Buchwald–Hartwig amination is a palladium-catalyzed cross-coupling reaction that forms carbon–nitrogen bonds by coupling aryl (or vinyl) halides with amines, widely used in the synthesis of pharmaceuticals and fine chemicals.
-
D.
Kumada coupling
Kumada coupling is a palladium- or nickel-catalyzed cross-coupling reaction between Grignard reagents and organic halides used to form carbon–carbon bonds in organic synthesis.
-
E.
Michaelis–Arbuzov reaction
The Michaelis–Arbuzov reaction is an organic transformation in which trialkyl phosphites react with alkyl halides to form phosphonates, widely used in the synthesis of organophosphorus compounds.
- F. None of above. chosen
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.