Improved Total Synthesis of 1,3,6-Trigalloyl-β-d-glucose from Glucose
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 A total synthesis of the naturally occurring 1,3,6-trigalloyl-β-d-glucose is reported. The highlights of the synthesis include a regioselective benzylation of levoglucosan, followed by a 1,6-ring opening via acetolysis. Galloyl substituents were introduced via esterification, and the mixture of anomers obtained could be fully converted into the targeted β-anomer via selective hydrazinolysis followed by activation of the anomeric position by a trichloroacetimidate of the 1′-anomeric hydroxyl group. 1,3,6-Trigalloyl-β-d-glucose and its synthetic α-anomer were obtained in an overall yield of 31% and 22%, respectively, from levoglucosan or in an overall yield of 37% of the β-isomer exclusively by recycling the α-isomer.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.003 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.007 | 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