Bibliographic record
Abstract
Abstract Dieser Aufsatz zeichnet die Entstehung der Wittig‐Still‐Umlagerung und deren Anwendung in der organischen Synthese nach. Ihre Beziehung zur Wittig‐Umlagerung wird diskutiert, einhergehend mit einer detaillierten Analyse der E/Z‐Selektivität und Diastereoselektivität. Modifikationen der in Wittig‐Still‐Umlagerungen gebildeten Produkte werden im Zusammenhang der gesteigerten Komplexität von Intermediaten mit potenziellem Nutzen für die zielorientierte Synthese erläutert. Frühe Anwendungen der Wittig‐Still‐Umlagerung zur Modifizierung von Steroiden werden ebenso besprochen wie Anwendungen in der Naturstoffsynthesen von Alkaloiden und Terpenen sowie der Synthese sonstiger Verbindungen. Nach unserem besten Wissen ist die Literatur bis Dezember 2016 abgedeckt.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.005 | 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".