Dieckmann condensation
E1517143
UNEXPLORED
Dieckmann condensation is an intramolecular Claisen condensation in which a diester forms a cyclic β-keto ester under basic conditions.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Dieckmann condensation canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T22067610 — 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: Dieckmann condensation Context triple: [Robinson annulation reaction, relatedTo, Dieckmann condensation]
-
A.
Barton reaction
The Barton reaction is an organic photochemical transformation that converts nitrite esters into δ-nitroso alcohols via intramolecular hydrogen abstraction and radical rearrangement.
-
B.
Diels–Alder reaction
The Diels–Alder reaction is a fundamental organic chemistry cycloaddition that forms six-membered rings by combining a conjugated diene with a dienophile in a single, stereospecific step.
-
C.
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.
-
D.
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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E.
Diels–Kranz
Diels–Kranz is the standard scholarly edition and numbering system for the surviving fragments and testimonia of the Presocratic philosophers.
- 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: Dieckmann condensation Target entity description: Dieckmann condensation is an intramolecular Claisen condensation in which a diester forms a cyclic β-keto ester under basic conditions.
-
A.
Barton reaction
The Barton reaction is an organic photochemical transformation that converts nitrite esters into δ-nitroso alcohols via intramolecular hydrogen abstraction and radical rearrangement.
-
B.
Diels–Alder reaction
The Diels–Alder reaction is a fundamental organic chemistry cycloaddition that forms six-membered rings by combining a conjugated diene with a dienophile in a single, stereospecific step.
-
C.
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.
-
D.
Chichibabin reaction
The Chichibabin reaction is an organic chemistry transformation that introduces an amino group into heteroaromatic compounds, especially pyridines, using sodium amide.
-
E.
Diels–Kranz
Diels–Kranz is the standard scholarly edition and numbering system for the surviving fragments and testimonia of the Presocratic philosophers.
- F. None of above. chosen
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.