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Record W2148735818 · doi:10.1002/0471264180.os061.28

Preparation of Thiol Esters: S‐ <i>tert</i> ‐Butyl Cyclohexanecarbothioate and <i>S‐tert</i> ‐Butyl 3α,7α,12α‐Trihydroxy‐5β‐cholane‐24‐thioate

2003· other· en· W2148735818 on OpenAlexaff
Gary O. Spessard, Wan Kit Chan, Satoru Masamune

Bibliographic record

VenueOrganic Syntheses · 2003
Typeother
Languageen
FieldChemistry
TopicChemical Synthesis and Reactions
Canadian institutionsUniversity of Alberta
Fundersnot available
KeywordsChemistryThiolChlorideOrganic chemistryThalliumProduct (mathematics)Medicinal chemistry

Abstract

fetched live from OpenAlex

Abstract Preparation of thiol esters: S‐ tert ‐butyl cyclohexanecarbothioate and S‐tert ‐butyl 3α,7α,12α‐trihydroxy‐5β‐cholane‐24‐thioate product: S‐tert‐Butyl cyclohexanecarbothioate reactant: 4.38 g (0.030 mol) of cyclohexanecarboxylic acid chloride reactant: 8.82 g (0.031 mol) of the thallium(I) 2‐methylpropane‐2‐thiolate product: S‐tert‐Butyl ester

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 machine prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Methods · Consensus signal: none
Teacher disagreement score0.008
Threshold uncertainty score0.026

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0080.004

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 head0.011
GPT teacher head0.239
Teacher spread0.228 · 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 source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreMethods

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

Citations0
Published2003
Admission routes1
Has abstractyes

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