Triple

T22067514
Position Surface form Disambiguated ID Type / Status
Subject August Wilhelm von Hofmann E545313 entity
Predicate knownFor P22 FINISHED
Object Hofmann degradation of quaternary ammonium salts NE NERFINISHED

How this triple was built (3 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: Hofmann degradation of quaternary ammonium salts | Statement: [August Wilhelm von Hofmann, knownFor, Hofmann degradation of quaternary ammonium salts]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Hofmann degradation of quaternary ammonium salts
Context triple: [August Wilhelm von Hofmann, knownFor, Hofmann degradation of quaternary ammonium salts]
  • A. Chichibabin pyridine synthesis
    Chichibabin pyridine synthesis is a classic organic reaction that forms pyridine and its derivatives by condensing aldehydes, ketones, and ammonia or amines under strongly basic conditions.
  • B. Barton–McCombie deoxygenation
    Barton–McCombie deoxygenation is an organic chemistry reaction that converts alcohols into the corresponding hydrocarbons via radical-mediated removal of the hydroxyl group.
  • C. 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.
  • D. 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.
  • E. 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.
  • 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 degradation of quaternary ammonium salts
Target entity description: The Hofmann degradation of quaternary ammonium salts is an organic reaction in which quaternary ammonium hydroxides undergo thermal decomposition to yield alkenes, amines, and other products via a β-elimination process.
  • A. Chichibabin pyridine synthesis
    Chichibabin pyridine synthesis is a classic organic reaction that forms pyridine and its derivatives by condensing aldehydes, ketones, and ammonia or amines under strongly basic conditions.
  • B. Barton–McCombie deoxygenation
    Barton–McCombie deoxygenation is an organic chemistry reaction that converts alcohols into the corresponding hydrocarbons via radical-mediated removal of the hydroxyl group.
  • C. 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.
  • D. 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.
  • E. 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.
  • F. None of above. chosen

Provenance (2 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_69e11e344dfc81909b1d88a7221329c7 completed April 16, 2026, 5:36 p.m.
NER Named-entity recognition batch_69f12884937c819095d3af69123fa2cb completed April 28, 2026, 9:37 p.m.
Created at: April 16, 2026, 8:27 p.m.