Activation of Alkyl C–F Bonds by B(C<sub>6</sub>F<sub>5</sub>)<sub>3</sub>: Stoichiometric and Catalytic Transformations
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Bibliographic record
Abstract
The Lewis acid B(C 6 F 5 ) 3 is shown to activate a series of alkyl fluorides. In stoichiometric reactions, treatment of sterically demanding phosphines with B(C 6 F 5 ) 3 /alkyl fluorides gives phosphonium fluoroborate salts while treatment of B(C 6 F 5 ) 3 /alkyl fluorides with the salts [ t Bu 3 PX][XB(C 6 F 5 ) 3 ] (X = H, PhS) gives the alkane and the salt byproduct [ t Bu 3 PX][FB(C 6 F 5 ) 3 ]. These fluoroalkanes are also catalytically converted to the corresponding alkanes by reaction of the fluoroalkane and Et 3 SiH using B(C 6 F 5 ) 3 as the catalyst.
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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 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.003 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 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