Results 51 to 60 of about 4,875 (234)
Angewandte Chemie, Volume 137, Issue 42, October 13, 2025.A unified Cr(III)/Rb(I) catalyst was developed for sulfur‐based ring‐opening copolymerisation (ROCOP), enabling high selectivity. Perfectly alternating copolymers were obtained from COS with minimal byproducts. PhNCS was identified as a practical alternative. Lower selectivity and O/S scrambling were observed for CS2 and thioanhydride . Abstract Sulfur‐
Bhargav R. Manjunatha +5 more
wiley +2 more sources
Crucial Role of Oxidation for the Prebiotic Peptide Elongation Promoted by Carbonyl Sulfide
European 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
Catalytic Hydrogenation of Thioesters, Thiocarbamates, and Thioamides [PDF]
Journal of the American Chemical Society, 2020 Direct hydrogenation of thioesters with H2 provides a facile and waste-free method to access alcohols and thiols. However, no report of this reaction is documented, possibly because of the incompatibility of the generated thiol with typical hydrogenation catalysts. Here, we report an efficient and selective hydrogenation of thioesters.
Jie Luo +4 more
openaire +4 more sources
Multistep Solid-State Organic Synthesis of Carbamate-Linked Covalent Organic Frameworks. [PDF]
, 2019 Herein, we demonstrate the first example of a multistep solid-state organic synthesis, in which a new imine-linked two-dimensional covalent organic framework (COF-170, 1) was transformed through three consecutive postsynthetic modifications into porous ...
Lyle, Steven J +5 more
core +1 more source
Co-Catalytic Metallopeptidases as Pharmaceutical Targets [PDF]
, 2003 Understanding the reaction mechanism of co-catalytic metallopeptidases provides a starting point for the design and synthesis of new molecules that can be screened as potential pharmaceuticals. Many of the enzymes that contain co-catalytic metallo-active
Bzymek, Krzysztof P. +2 more
core +2 more sources
2,3,4,6-Tetra-O-acetyl-1-[(dimethylcarbamothioyl)sulfanyl]-β-d-galactopyranose
IUCrDataIn the structure of the title compound, C17H25NO9S2, the bond lengths in the C—S—C moiety are almost equal at 1.7959 (8) and 1.7877 (9) Å, with a shorter formally double C—S bond of 1.6698 (9) Å at the other sulfur atom.
Reham A. Mohamed-Ezzat +2 more
doaj +1 more source
[(Z)-O-Ethyl-N-(p-tolyl)thiocarbamato-κS](triphenylphosphine)-κP]gold(I)
Acta Crystallographica Section E, 2009 The title compound, [Au(C10H12NOS)(C18H15P)], features a linear S,P-donor set about the central Au atom. The thiocarbamate ligand is orientated to place the aryl ring in close proximity to Au [the closest Au...C distance is 3.238 (4) &
Edward R. T. Tiekink +1 more
doaj +1 more source
Analytical 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
Thermosensitive Imaging Composition and Lithographic Plate Comprising the Same (US Patent 20110271859) [PDF]
, 2011 The present application relates to a positive-working heat-sensitive lithographic plate. The infrared heat-sensitive image recording composition of the plate comprises a resin having self-dissolution inhibiting property and an infrared absorber.
Li, Shiyou, Yuan, Wei
core +1 more source
The role of copper in disulfiram-induced toxicity and radiosensitisation of cancer cells. [PDF]
, 2013 Disulfiram has been used for several decades in the treatment of alcoholism. It now shows promise as an anti-cancer drug and radiosensitizer. Proposed mechanisms of action include the induction of oxidative stress and inhibition of proteasome activity ...
Babich, John W +5 more
core +1 more source