Results 31 to 40 of about 46,498 (299)
Synthesis of Novel Aryl(heteroaryl)sulfonyl Ureas of Possible Biological Interest
Molecules, 2010 The course of reaction of aryl and heteroaryl sulfonamides with diphenylcarbonate (DPC) and 4-dimethylaminopyridine (DMAP) was found to depend on the pKa of the sulfonamide used.
Maria Gdaniec +8 more
doaj +1 more source
Do Sulfonamides Interact with Aromatic Rings? [PDF]
, 2021 Aromatic rings form energetically favorable interactions with many polar groups in chemical and biological systems. Recent molecular studies have shown that sulfonamides can chelate metal ions and form hydrogen bonds, however, it is presently not ...
Jie Jian +20 more
core +1 more source
, 2007 The sulfonyl group finds extensive applications in organic and medicinal chemistry both in sulfonamides, popular as robust protecting groups for amines, and in sulfones.
Uenoyama, Yoshitaka +11 more
core +1 more source
, 2021 New strategies to access radicals from common feedstock chemicals hold the potential to broadly impact synthetic chemistry. We report a dual phosphine and photoredox catalytic system that enables direct formation of sulfonamidyl radicals from primary ...
Abigail, Doyle +2 more
core +1 more source
Advanced Functional Materials, EarlyView.Sulfur fluoride exchange (SuFEx) is a powerful click platform, yet water‐compatible multifunctional linchpins remain elusive. Here, we report decagram‐scalable diazonium linchpins that enable rapid Pd‐catalyzed diversification and direct, catalyst‐free on‐DNA ligation in aqueous media.
Seok Ju Hong +5 more
wiley +1 more source
Degradation kinetics of six sulfonamides in hen eggs under simulated cooking temperatures [PDF]
Journal of the Serbian Chemical Society, 2011 Six sulfonamides, i.e., sulfadiazine, sulfadimethoxine, sulfamerazine, sulfamethazine, sulfamethoxazole and sulfamonomethoxine, were applied to spike whole hen eggs at 0.1 mg kg-1 eggs.
YING-HUA ZHANG, PENG WU, XIN-HUAI ZHAO
doaj
Gold-catalyzed intermolecular hydroamination of allenes with sulfonamides
Beilstein Journal of Organic Chemistry, 2013 A co-catalyst of (PPh3)AuCl/AgOTf for the intermolecular hydroamination of allenes with sulfonamides is shown. The reaction proceeded smoothly under mild conditions for differently substituted allenes giving N-allylic sulfonamides in good yields with ...
Chen Zhang +3 more
doaj +1 more source
Clinical and epidemiological evolution of modern therapy and measles in children
Журнал инфектологии, 2015 Clinical and epidemiological research on the evolution of measles in children in Leningrad – St. Petersburg from 1927–2014 with an analysis of the effectiveness of treatment of this infection. Divided into three periods of fighting «child plague».
V. N. Timchenko +5 more
doaj +1 more source
Antibiotics in Raw Meat Samples: Estimation of Dietary Exposure and Risk Assessment
Toxics, 2022 The extensive use of antibiotics in livestock farming poses increased concerns for human health as residues of these substances are present in edible tissues.
Athina Stavroulaki +11 more
doaj +1 more source
Diazotization-Enabled Deaminative Late-Stage Functionalization of Primary Sulfonamides
, 2023 We, for the first time, disclosed a simple and efficient strategy for the late-stage functionalization of primary sulfonamides by diazotization, leading to sulfonyl chlorides, sulfonates, and complex sulfonamides.
Zhi-Wei Li (747895) +8 more
core +1 more source