Base‐catalyzed deuterium and tritium labelling of 1‐biphenyl‐4‐ylpropane‐1,2‐dione and deuteration of aryl methyl ketones
Why this work is in the frame
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Bibliographic record
Abstract
Abstract A synthesis and a base‐catalyzed exchange reaction was developed under mild conditions to deuterate and subsequently tritiate the methyl group of the base sensitive diketone 1‐biphenyl‐4‐ylpropane‐l,2‐dione depicted in Figure 1. Using Et 3 N as base, deuterium incorporation of the methyl group was 88.9% and the tritium incorporation gave a specific radioactivity of 119 mCi/mmol. The scope of the exchanges was extended to methyl aryl ketones 2–4 . Copyright © 2004 John Wiley & Sons, Ltd.
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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 | 0.000 |
| 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 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 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 it