Intramolecular Nickel‐Catalyzed Ring‐Opening Reactions of Oxabenzonorbornadienes with C<sub>1</sub>‐Tethered Aryl Halides: An Improvement of Method
Bibliographic record
Abstract
An improved method of the recently reported novel transition metal‐catalyzed intramolecular ring‐opening reaction of oxabenzonorbornadienes with C 1 ‐tethered aryl halides is described. Using a nickel catalyst, fused tetracycles containing a 1,2‐dihydronaphthalen‐1‐ol framework were generated with good to excellent yields and selectivities in most cases: a result seldom obtained using the previous palladium‐catalyzed conditions. Electron‐withdrawing, electron‐donating, and bulky substituents were generally found to be well tolerated in the reaction while extension of the tether led to decreased yields.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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 teacher head, 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".