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Record W4317712977 · doi:10.1055/a-2017-4868

Recent Developments of Palladium- and Rhodium-Catalyzed β-Carbon Elimination Strategies

2023· article· en· W4317712977 on OpenAlexfundno aff
Austin D. Marchese, Bijan Mirabi, Mark Lautens

Bibliographic record

VenueSynthesis · 2023
Typearticle
Languageen
FieldChemistry
TopicCyclopropane Reaction Mechanisms
Canadian institutionsnot available
FundersKennarshoreUniversity of TorontoAlphora Research
KeywordsChemistryRhodiumPalladiumCatalysisChelationSteric effectsCombinatorial chemistryTransition metalReductive eliminationCarbon fibersOrganic chemistry

Abstract

fetched live from OpenAlex

Abstract The activation of C–C bonds via transition metal catalysis has become an increasingly popular strategy in organic synthesis. An emerging method to cleave C–C bonds is to facilitate a β-carbon elimination using rhodium or palladium catalysis. This elementary step typically relies on a thermodynamic driving force, such as the relief of ring strain or steric strain. More recently, the use of neopentyl metal species or chelation assistance has enabled this difficult transformation. This review will cover recent synthetic applications of β-carbon eliminations under palladium and rhodium catalysis. 1 Introduction 2 Chelation-Assisted β-Carbon Elimination Reactions 3 β-Carbon Elimination from Neopentyl–Pd Species 4 Pd-Catalyzed Catellani Reactions 5 β-Carbon Elimination Reactions of Cyclopropanes 6 Conclusion

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.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.002
Threshold uncertainty score0.006

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.000
Science and technology studies0.0000.000
Scholarly communication0.0010.001
Open science0.0010.001
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0020.001

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 head0.021
GPT teacher head0.248
Teacher spread0.227 · 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

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations12
Published2023
Admission routes1
Has abstractyes

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