Recent Developments of Palladium- and Rhodium-Catalyzed β-Carbon Elimination Strategies
Bibliographic record
Abstract
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
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot 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.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 0.001 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
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".