Triple
T6995010
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | David A. Evans |
E162185
|
entity |
| Predicate | notableWork |
P4
|
FINISHED |
| Object |
Evans auxiliary-based asymmetric synthesis
Evans auxiliary-based asymmetric synthesis is a widely influential chiral auxiliary strategy developed by David A. Evans that enables highly stereoselective construction of complex molecules in organic synthesis.
|
E634404
|
NE FINISHED |
How this triple was built (4 steps)
Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.
NER
Named-entity recognition
gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: Evans auxiliary-based asymmetric synthesis | Statement: [David A. Evans, notableWork, Evans auxiliary-based asymmetric synthesis]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Evans auxiliary-based asymmetric synthesis Context triple: [David A. Evans, notableWork, Evans auxiliary-based asymmetric synthesis]
-
A.
Enantioselective Chemical Synthesis
Enantioselective Chemical Synthesis is a foundational work in organic chemistry that systematically presents strategies and methods for constructing chiral molecules with high stereocontrol.
-
B.
Trost asymmetric allylic alkylation
Trost asymmetric allylic alkylation is a palladium-catalyzed enantioselective carbon–carbon bond-forming reaction that enables the synthesis of chiral molecules from prochiral allylic substrates.
-
C.
Sharpless asymmetric dihydroxylation
Sharpless asymmetric dihydroxylation is a landmark chemical reaction that uses chiral catalysts to add two hydroxyl groups across an alkene with high enantioselectivity, revolutionizing asymmetric synthesis in organic chemistry.
-
D.
Breslow intermediate in organocatalysis
The Breslow intermediate in organocatalysis is a transient nucleophilic carbene-derived species central to thiamine- and N-heterocyclic carbene-catalyzed umpolung reactions of carbonyl compounds.
-
E.
Corey–Nicolaou macrolactonization
Corey–Nicolaou macrolactonization is a widely used organic synthesis reaction that forms large-ring lactones from hydroxy acids via an activated ester intermediate.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Evans auxiliary-based asymmetric synthesis Triple: [David A. Evans, notableWork, Evans auxiliary-based asymmetric synthesis]
Generated description
Evans auxiliary-based asymmetric synthesis is a widely influential chiral auxiliary strategy developed by David A. Evans that enables highly stereoselective construction of complex molecules in organic synthesis.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Evans auxiliary-based asymmetric synthesis Target entity description: Evans auxiliary-based asymmetric synthesis is a widely influential chiral auxiliary strategy developed by David A. Evans that enables highly stereoselective construction of complex molecules in organic synthesis.
-
A.
Enantioselective Chemical Synthesis
Enantioselective Chemical Synthesis is a foundational work in organic chemistry that systematically presents strategies and methods for constructing chiral molecules with high stereocontrol.
-
B.
Trost asymmetric allylic alkylation
Trost asymmetric allylic alkylation is a palladium-catalyzed enantioselective carbon–carbon bond-forming reaction that enables the synthesis of chiral molecules from prochiral allylic substrates.
-
C.
Sharpless asymmetric dihydroxylation
Sharpless asymmetric dihydroxylation is a landmark chemical reaction that uses chiral catalysts to add two hydroxyl groups across an alkene with high enantioselectivity, revolutionizing asymmetric synthesis in organic chemistry.
-
D.
Breslow intermediate in organocatalysis
The Breslow intermediate in organocatalysis is a transient nucleophilic carbene-derived species central to thiamine- and N-heterocyclic carbene-catalyzed umpolung reactions of carbonyl compounds.
-
E.
Corey–Nicolaou macrolactonization
Corey–Nicolaou macrolactonization is a widely used organic synthesis reaction that forms large-ring lactones from hydroxy acids via an activated ester intermediate.
- F. None of above. chosen
Provenance (5 batches)
The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.
| Step | Stage | Batch ID | Status | When |
|---|---|---|---|---|
| creating | Elicitation | batch_69c68857ffc08190857dc62cd5253777 |
completed | March 27, 2026, 1:38 p.m. |
| NER | Named-entity recognition | batch_69c6dbec259c8190bb4cfbc1ff6fc786 |
completed | March 27, 2026, 7:35 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c76a1fa11481908450978acc1e0913 |
completed | March 28, 2026, 5:41 a.m. |
| NEDg | Description generation | batch_69c76b84f5688190a0aef7cd8695c6b0 |
completed | March 28, 2026, 5:47 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69c76be95ecc8190a57ff197f236d434 |
completed | March 28, 2026, 5:49 a.m. |
Created at: March 27, 2026, 2:32 p.m.