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Record W2120963063 · doi:10.1002/047084289x.rb190

Bis(pyridine)silver(I) Permanganate

2001· reference-entry· en· W2120963063 on OpenAlexaff
Donald G. Lee

Bibliographic record

VenueEncyclopedia of Reagents for Organic Synthesis · 2001
Typereference-entry
Languageen
FieldChemistry
TopicInorganic and Organometallic Chemistry
Canadian institutionsUniversity of Regina
Fundersnot available
KeywordsPermanganatePyridineChemistryMedicinal chemistryInorganic chemistry

Abstract

fetched live from OpenAlex

[82503-38-6] C10H10AgMnN2O4 (MW 385.01) InChI = 1S/2C5H5N.Ag.Mn.4O/c2*1-2-4-6-5-3-1;;;;;;/h2*1-5H;;;;;;/q;;+1;;;;;-1 InChIKey = BKOYEWVQWOTSFK-UHFFFAOYSA-N (oxidant, useful for the oxidation of polycyclic aromatics and alkynes to diketones,1 primary benzylic alcohols to aldehydes,2 secondary alcohols to ketones;2 for the oxidative coupling of amines;3 and the deoximation of oximes3) Physical Data: purple solid, decomposes at 104–105 °C.2 Solubility: sol acetone, chloroform and dichloromethane; sparingly sol benzene and pyridine.2 Analysis of Reagent Purity: elemental analysis.2 Preparative Method: pyridine (3 mol) is added to KMnO4 (1 mol) dissolved in a minimum of distilled water followed by AgNO3 (1 mol) in 1.7 L of distilled water. The purple precipitate (90%) is washed with water and then benzene. After drying over CaCl2 it is recrystallized from acetone/benzene.2 The visible spectrum resembles that of potassium permanganate and the IR displays a strong band at 900 cm−1. Handling, Storage, and Precautions: slowly reduced by polar solvents such as acetone, chloroform, and dichloromethane; less soluble, but more stable in benzene and pyridine;2 insensitive to hammer blows, but ignites above 80 °C;2 store small amounts (10–50 g) in glass vessels at or below rt.

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 imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.002
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Research integrity, Insufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: Not applicable
GenreCandidate signal: Other · Consensus signal: Other
Teacher disagreement score0.153
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.002
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0020.001
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0020.000
Research integrity0.0020.001
Insufficient payload (model declined to judge)0.0800.000

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.

Opus teacher head0.015
GPT teacher head0.235
Teacher spread0.220 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

Study designNot applicable
Domainnot available
GenreOther

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".

Quick stats

Citations1
Published2001
Admission routes1
Has abstractyes

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