Reactions of Diorganomagnesium Compounds and Cryptands or 1,4,8,11-Tetramethyl-1,4,8,11-tetraazacyclotetradecane: Formation of RMg(macrocycle)<sup>+</sup> Cations and Organomagnesate Anions
Bibliographic record
Abstract
Many reactions of diorganomagnesium compounds (R 2 Mg) and a cryptand or 14N4 (1,4,8,11-tetramethyl-1,4,8,11-tetraazacyclotetradecane) in benzene form solutions of RMg(macrocycle) + and organomagnesate ions. With 14N4 or 2,1,1-cryptand and 2 equiv of R 2 Mg, conversion to RMg(macrocycle) + and R 3 Mg - is complete. Conversion to RMg(macrocycle) + tends to be less complete with 2,2,1-cryptand and with some R 2 Mg compounds does not occur at all with 2,2,2-cryptand. Conversion to RMg(macrocycle) + tends to be greater when R is p -tolyl rather than alkyl and the solvent is benzene rather than THF. A crystal structure of PhMg(14N4) + Ph 3 Mg(THF) - is reported.
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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".