Synthesis of 1‐Bromopyrene and 1‐Pyrenecarbaldehyde
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Abstract The article discusses synthesis of 1‐bromopyrene and 1‐pyrenecarbaldehyde. Due to the useful photophysical attributes of pyrene, it is a desirable component of many functional materials. Thus, 1‐bromopyrene is a key building block for a large portion of the chemical community. The first synthesis of 2 was described in 1937 by Lock, via the bromination of 1. Similar approaches have since been described using reagents such as NBS, CuBr and HBr with H 2 O The use of column chromatography in these protocols, however, limits the reaction scale. Fulfilling the demand for 1‐bromopyrene in larger amounts, a simple and chromatography free procedure has been reported in 1968 by Gumprecht. Unfortunately, this procedure require the use of CCl 4 as solvent, which has been prohibited in many countries due to toxicological and environmental concerns. Thus, there is considerable demand for a procedure with similar synthetic utility that does not require CCl 4 or column chromatography.
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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 | 0.000 | 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 | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.020 | 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