Grubbs catalyst
E773027
Grubbs catalyst is a family of ruthenium-based organometallic complexes widely used to catalyze olefin metathesis reactions in organic and polymer chemistry.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Grubbs catalyst canonical | 3 |
| Hoveyda–Grubbs catalyst | 1 |
| first-generation Grubbs catalyst | 1 |
| second-generation Grubbs catalyst | 1 |
| third-generation Grubbs catalyst | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9018704 — 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: Grubbs catalyst Context triple: [Robert H. Grubbs, knownFor, Grubbs catalyst]
-
A.
Wilkinson's catalyst
Wilkinson's catalyst is a homogeneous rhodium-based coordination complex widely used in organometallic chemistry for the catalytic hydrogenation of alkenes.
-
B.
Adams catalyst
Adams catalyst is a platinum-based hydrogenation catalyst widely used in organic chemistry for reducing a variety of functional groups under mild conditions.
-
C.
Ziegler–Natta catalysts
Ziegler–Natta catalysts are a class of organometallic catalysts used industrially to produce stereoregular polyolefins such as polyethylene and polypropylene under relatively mild conditions.
-
D.
Corey–Chaykovsky reagent
The Corey–Chaykovsky reagent is an organosulfur ylide reagent widely used in organic synthesis to convert carbonyl compounds into epoxides and aziridines.
-
E.
Eschenmoser
Eschenmoser is a Swiss surname most notably associated with Albert Eschenmoser, a prominent organic chemist known for his pioneering work in the synthesis of complex natural products and studies on the origin of life.
- 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: Grubbs catalyst Target entity description: Grubbs catalyst is a family of ruthenium-based organometallic complexes widely used to catalyze olefin metathesis reactions in organic and polymer chemistry.
-
A.
Wilkinson's catalyst
Wilkinson's catalyst is a homogeneous rhodium-based coordination complex widely used in organometallic chemistry for the catalytic hydrogenation of alkenes.
-
B.
Adams catalyst
Adams catalyst is a platinum-based hydrogenation catalyst widely used in organic chemistry for reducing a variety of functional groups under mild conditions.
-
C.
Ziegler–Natta catalysts
Ziegler–Natta catalysts are a class of organometallic catalysts used industrially to produce stereoregular polyolefins such as polyethylene and polypropylene under relatively mild conditions.
-
D.
Corey–Chaykovsky reagent
The Corey–Chaykovsky reagent is an organosulfur ylide reagent widely used in organic synthesis to convert carbonyl compounds into epoxides and aziridines.
-
E.
Eschenmoser
Eschenmoser is a Swiss surname most notably associated with Albert Eschenmoser, a prominent organic chemist known for his pioneering work in the synthesis of complex natural products and studies on the origin of life.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Grubbs catalyst
ⓘ
olefin metathesis catalyst ⓘ organometallic catalyst ⓘ ruthenium complex ⓘ |
| associatedWithAward | Nobel Prize in Chemistry 2005 ⓘ |
| catalyzes | C=C bond exchange ⓘ |
| commerciallyAvailable | true ⓘ |
| contributedTo | development of olefin metathesis as a practical synthetic method ⓘ |
| coordinationGeometry | approximately square pyramidal or octahedral around ruthenium ⓘ |
| developedBy | Robert H. Grubbs ⓘ |
| field |
homogeneous catalysis
ⓘ
organometallic chemistry ⓘ |
| hasCentralAtom |
ruthenium
ⓘ
ruthenium ⓘ ruthenium ⓘ |
| hasElement | ruthenium ⓘ |
| hasGeneration |
first-generation Grubbs catalyst
ⓘ
linked to:
Grubbs catalyst
second-generation Grubbs catalyst ⓘ
linked to:
Grubbs catalyst
third-generation Grubbs catalyst ⓘ
linked to:
Grubbs catalyst
|
| hasLigand |
N-heterocyclic carbene ligand
ⓘ
N-heterocyclic carbene ligand ⓘ N-heterocyclic carbene-free ⓘ PCy3 ⓘ benzylidene ligand ⓘ benzylidene ligand ⓘ benzylidene ligand ⓘ chloride ligands ⓘ pyridine ligand ⓘ two chloride ligands ⓘ |
| hasOxidationState | +2 (ruthenium center) ⓘ |
| moreActiveThan | first-generation Grubbs catalyst ⓘ |
| namedAfter | Robert H. Grubbs ⓘ |
| notableProperty |
air-stable in solid form
ⓘ
moisture-tolerant compared to many metathesis catalysts ⓘ tolerant of many functional groups ⓘ |
| reactionType | homogeneous catalysis ⓘ |
| typicalSolvent |
chloroform
ⓘ
dichloromethane ⓘ toluene ⓘ |
| usedFor |
cross-metathesis
ⓘ
olefin metathesis ⓘ ring-closing metathesis ⓘ ring-opening metathesis polymerization ⓘ synthesis of fine chemicals ⓘ synthesis of pharmaceuticals ⓘ synthesis of specialty polymers ⓘ |
| usedIn |
organic synthesis
ⓘ
polymer chemistry ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Grubbs catalyst Description of subject: Grubbs catalyst is a family of ruthenium-based organometallic complexes widely used to catalyze olefin metathesis reactions in organic and polymer chemistry.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Grubbs catalyst
subject linked to:
Howard
linked to: Grubbs catalyst
linked to: Grubbs catalyst
linked to: Grubbs catalyst