Dimethyl 7-methoxytetracyclo[6.4.0.0<sup>2,4</sup>.0<sup>3,7</sup>]dodeca-1(12),5,8,10-tetraene-3,4-dicarboxylate
Bibliographic record
Abstract
The title compound, C(17)H(16)O(5), is a previously unreported substituted semibulvalene cage compound (that is, a tricyclic hydro-carbon formed from one cyclo-propane and two cyclo-pentene rings which also has one double bond fused to a benzene ring). It has one meth-oxy substituent attached to the bridgehead C atom that links only the two cyclo-pentene rings and two methyl carboxyl-ate groups located on the C atom shared by all three non-benzene rings and that shared only between the cyclo-propane and the cyclo-pentene rings. The stereochemistry of the two enanti-omers (racemate) that assemble in each unit cell is RRRS and SSSR. In the crystal, mol-ecules are linked via C-H⋯O hydrogen bonds and C-H⋯π inter-actions, forming double-layered sheets lying perpendicular to the a axis.
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.
How this classification was reachedexpand
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 | 0.002 |
| Meta-epidemiology (narrow) | 0.002 | 0.002 |
| Meta-epidemiology (broad) | 0.002 | 0.002 |
| Bibliometrics | 0.001 | 0.002 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.002 | 0.004 |
| Insufficient payload (model declined to judge) | 0.008 | 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; both teacher heads agree on what is shown here.
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".