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Record W1964549405 · doi:10.1002/ange.201106131

Die Entwicklung raumerfüllender Palladium‐NHC‐Komplexe für anspruchsvollste Kreuzkupplungsreaktionen

2012· article· de· W1964549405 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueAngewandte Chemie · 2012
Typearticle
Languagede
FieldChemistry
TopicCatalytic Cross-Coupling Reactions
Canadian institutionsYork University
Fundersnot available
KeywordsChemistryStille reactionPalladiumNegishi couplingMedicinal chemistryCatalysisOrganic chemistry

Abstract

fetched live from OpenAlex

Abstract Palladiumkatalysierte Kreuzkupplungen versetzten Organiker in die Lage, C‐C‐Bindungen gezielt und unter milden Reaktionsbedingungen zu einzuführen. Während Phosphanliganden in diesen Umsetzungen am intensivsten erforscht wurden, sind seit kurzem auf der Suche nach leistungsfähigeren Katalysatoren für Kreuzkupplungen auch N‐heterocyclische Carbenliganden (NHC), die eine starke Bindung zum Palladiumzentrum bilden, beachtet worden. PEPPSI‐Pd‐Präkatalysatoren (“Pyridin‐verstärkte Präkatalysatorherstellung, ‐stabilisierung und ‐initiierung”) mit sperrigen NHC‐Liganden haben sich mittlerweile als Alternative neben Palladium‐Phosphan‐Komplexen etabliert. Über ihre Leistungsfähigkeit in Suzuki‐Miyaura‐, Negishi‐ und Stille‐Migita‐Kreuzkupplungen sowie in Aminierungen und Sulfinierungen berichtet dieser Aufsatz.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Insufficient payload (model declined to judge)
Consensus categoriesInsufficient payload (model declined to judge)
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.220
Threshold uncertainty score0.999

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0000.001
Science and technology studies0.0010.001
Scholarly communication0.0000.001
Open science0.0010.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0070.005

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.025
GPT teacher head0.294
Teacher spread0.268 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it