Synthesis of New Bioactive Sulfur Compounds Bearing Heterocyclic Moiety and Their Analytical Applications
Bibliographic record
Abstract
Some new bioactive sulfur compounds bearing heterocyclic nitrogen moieties such as 3- imino–2-thioxo-4,5-dihydro- thiazolidin – 4-one (3), 3-imino – 2-thioxo -3,4,5,6-tetrahydro-1, 3-thiazine-4, 6- (2 H)dione(4), N- substituted – pyrazol -3,5-dione (10) , 1,3 –disubstituted -2-thioxo-pyrimidin-4,6 –dione (11) and di –(3,5-diaminopyrazolin-1-yl)thioketone (13) derived from dithioc formic acid hydrazide (1) and thiocarbohydrazide (7)were prepared via condensation of compound 1 or 7 with acyclic and cyclic oxo compounds (e.g. aldehydes andketones) in 1:1 and 1:2 molar ratios, and addition of iso thiocyanate or treatment with active methylene compoundsfollowed by ring closing reactions in different media (Schemes I & II). The biocidal effect of some compoundstowards some bacteria and fungi was evaluated. Compound 4 was used as selective chelating agent forspectrophotometric determination of mercury (II) ions. The limit of detection (LOD) and quantification (LOQ) ofthe developed spectrophotometric method were found to be equal to 0.16 and 0.52 ?g mL-1 mercury (II),respectively. Compound 4 was also physically immobilized onto polyurethane foam (PUFs) and was successfullyused as solid sorbent in packed column for removal of mercury (II) ions from wastewater.
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How this classification was reachedexpand
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) | 0.000 | 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) | 0.001 | 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 teacher head, 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".