Reversible 1,1‐Hydroborierung: Borylinsertion in eine C‐N‐Bindung und konkurrierende Eliminierung von entweder HBR<sub>2</sub> oder R‐H
Bibliographic record
Abstract
Abstract Borane der allgemeinen Struktur HBR 2 reagieren leicht mit Pyrido[1,2‐a]isoindol ( A ) in Form einer 1,1‐Hydroborierung. Hierbei kommt es durch die Insertion einer BR 2 ‐Einheit in eine C‐N‐Bindung zur Ausbildung eines BN‐Heterocyclus. Die Untersuchung der Thermoreaktivität des BN‐Heterocyclus zeigte, dass die thermische Eliminierung über zwei getrennte, miteinander konkurrierende Routen verläuft: HBR 2 ‐Eliminierung (auch Retrohydroborierung) oder R‐H‐Eliminierung, abhängig vom jeweiligen Rest R am Boratom und vom Chelatgerüst. Der Mechanismus dieser höchst außergewöhnlichen Reaktionen wurde experimentell und durch quantenmechanische Rechnungen untersucht. Die Adduktbildung zwischen HBR 2 und A ist hierbei das entscheidende Zwischenprodukt in der 1,1‐Hydroborierung von A .
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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) | 0.001 | 0.002 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.002 | 0.002 |
| Insufficient payload (model declined to judge) | 0.001 | 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; both teacher heads agree on what is shown here.
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".