Results 71 to 80 of about 3,977 (192)

Crucial Role of Oxidation for the Prebiotic Peptide Elongation Promoted by Carbonyl Sulfide

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 1, January 12, 2026.
The prebiotic activation of amino acid (AA) into peptides via N‐carboxyanhydride (NCA), promoted by carbonyl sulfide (COS), cannot proceed without an oxidizing step (enabling better leaving groups than sulfur dianion). While being efficient even at mild pH the prebiotic scope of COS promoted activation of AA, it is however limited because side ...
Alexandre Desfoux   +4 more
wiley   +1 more source

Tin-free Alternatives to the Barton-McCombie Deoxygenation of Alcohols to Alkanes Involving Reductive Electron Transfer

open access: yesCHIMIA, 2016
Echoing the recent celebration of the fortieth anniversary of the Barton-McCombie reaction, this review aims to explore another facet of radical processes for deoxygenation of alcohols by considering SET (single electron transfer) reduction of ...
Ludwig Chenneberg, Cyril Ollivier
doaj   +1 more source

Chemical enhancement of soil based footwear impressions on fabric [PDF]

open access: yes, 2012
This study investigates the enhancement of footwear impressions prepared with soils from different locations on a variety of fabric surfaces with different morphology.
Bandey, Helen   +3 more
core   +3 more sources

Application of Raman Spectroscopy Coupled With Chemometrics for the Detection and Quantification of Mancozeb Residues in Collard Green

open access: yesAnalytical Science Advances, Volume 6, Issue 2, December 2025.
ABSTRACT The presence of pesticide residues in food crops poses serious health concerns, necessitating precise, rapid and accessible detection techniques. This study investigates the use of Raman spectroscopy combined with advanced data analysis techniques to detect and quantify Mancozeb residues in collard greens. The primary objective was to evaluate
Saaya Abel Kanai   +3 more
wiley   +1 more source

Reactions of N-acetylcysteine adducts of aromatic (di)isocyanates with functional groups of organic molecules [PDF]

open access: yes, 2008
Glutathione thiocarbamate conjugates of isocyanates play a key role in transport and final reactions of isocyanates in the human body by transcarbamoylation. N-acetylcysteine is the simplest model for thiocarbamate reactions.
Frank, Petra   +3 more
core  

Deuteration of Six‐Membered N‐Heteroarenes: Chemistry and Applications

open access: yesChemistry – A European Journal, Volume 31, Issue 67, December 1, 2025.
Deuterated six‐membered N‐Heteroarenes (6NHetAr) are finding utility in an increasing repertoire of applications. Our paper comprehensively reviews synthetic approaches that have been reported for the deuteration of 6NHetAr and their fused counterparts while providing an overview of established and emerging applications for these materials.
Liju Raju   +4 more
wiley   +1 more source

Corn herbicide injury I (1980) [PDF]

open access: yes, 1980
"May 1980.""University of Illinois College of Agriculture Cooperative Extension Service and Vocational Agriculture Service, Urbana, Illinois.""Picture sheet no. 150.
University of Illinois Extension
core  

Supramolecular aggregation in dithia-arsoles: chlorides, cations and N-centred paddlewheels [PDF]

open access: yes, 2017
The benzo-fused dithia-chloro-arsole derivative C6H4S2AsCl (1) is found to crystallise in the triclinic space group P[1 with combining macron] with 17 molecules in the asymmetric unit whereas the tolyl derivative, MeC6H3S2AsCl (2) is polymorphic with the
Melen, Rebecca   +5 more
core   +2 more sources

Vertical migration of some herbicides through undisturbed and homogenized soil columns

open access: yesOrbital: The Electronic Journal of Chemistry, 2008
A laboratory experiment was conducted by using three herbicides, two from dinitroaniline group and one from thiocarbamate group to know their degree of downward movement (leachability) through soil columns and their contribution in ground water ...
Md. Wasim Aktar   +3 more
doaj   +3 more sources

β-Hydroxy sulfides and their syntheses

open access: yesBeilstein Journal of Organic Chemistry, 2018
Sulfur-containing natural products are ubiquitous in nature, their most abundant source being marine organisms since sulfur, in the form of the sulfate ion, is the second most abundant anion in sea water after chloride.
Mokgethwa B. Marakalala   +2 more
doaj   +1 more source

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