Heteroaggregate von Aryl‐ und Alkyllithiumreagentien: Faszinierende Strukturen mit grundlegender Bedeutung
Bibliographic record
Abstract
Abstract Organolithiumverbindungen werden oft als einkernige Spezies dargestellt. Tatsächlich lagern sich diese Verbindungen aber zusammen, wobei Heteroaggregate mit verschiedenen organischen Gruppen, auch solchen mit Heteroatomen, entstehen können. Bei Reaktionen mit Organolithiumreagentien wird oft nicht beachtet, dass sich das “reine” lithiumorganische Homoaggregat in ein Heteroaggregat mit abweichender Struktur und Reaktivität umwandeln kann. Wenn das Organolithiumreagens oder das Substrat chirale Zentren enthält, kann auch diastereoselektive Selbstorganisation auftreten (die bevorzugte Bildung eines bestimmten Aggregat‐Diastereomers). Die Auswirkungen dieses Verhaltens auf Struktur und Reaktivitätsmuster von Organolithiumreagentien ist das Thema diese Kurzaufsatzes.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 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 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".