Binding Modes and Reactivity of Pyrido[2,1-<i>a</i>]isoindole as a Neutral Carbon Donor with Main-Group and Transition-Metal Elements
Bibliographic record
Abstract
Abstract Various binding modes of pyrido[2,1-a]isoindole with main-group and transition-metal elements have been established. The carbon atom at position 6 of pyrido[2,1-a]isoindole is highly nucleophilic, forming a σ complex with Pt(II) ion. The benzene ring of pyrido[2,1-a]isoindole forms an η6-π complex with Cr(0). The reaction of pyrido[2,1-a]isoindole with PPh2Cl in the presence of Proton Sponge leads to a PPh2-functionalized product, which can further react with a BH3 molecule, forming a P→B adduct. Pyrido[2,1-a]isoindole was also found to undergo a dehydrogenative C–C coupling reaction in the presence of Cu(I) ions, forming a dimer. These interesting reactivities and binding modes demonstrate the rich chemistry of pyrido[2,1-a]isoindole, as well as its potential application in main-group and transition-metal chemistry.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 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) | 0.002 | 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; 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".