Results 81 to 90 of about 86,895 (336)

Crystal structures of 4-chlorophenyl N-(3,5-dinitrophenyl)carbamate and phenyl N-(3,5-dinitrophenyl)carbamate

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2015
The title compounds, C13H8ClN3O6, (I), and C13H9N3O6, (II), differ in the orientation of the two aromatic rings. In (I), they are essentially coplanar, making a dihedral angle of 8.2 (1)°, while in (II), they are inclined to one another by 76.2 (1)°. The
Rajamani Raja   +3 more
doaj   +1 more source

Engineering of Multi‐Dynamic Bonds Toward Room‐Temperature Self‐Healing Epoxy/MXene Adaptable Network with Record‐High Toughness

open access: yesAdvanced Science, EarlyView.
Inspired by mussel nacre and byssus, a multi‐type dynamic chemically bonded epoxy/MXene adaptable network is fabricated through a hierarchical assembly strategy, establishing the toughest (210.75 MJ m−3) room‐temperature self‐healing (90.04% recovery within 2 h at 25 °C) epoxy resin to date, challenging the limitations of conventional thermosetting ...
Xiaobo Zhu   +4 more
wiley   +1 more source

Total Synthesis of Isodaphlongamine H by Iridium‐Catalyzed Reductive [3 + 2] Cycloaddition of N‐Hydroxylactam

open access: yesAngewandte Chemie, EarlyView.
The total synthesis of isodaphlongamine H was accomplished by a lactam strategy. This strategy started with alkylation and N‐oxidation of a readily available chiral lactam. For the key functionalization of the amide carbonyl, an iridium‐catalyzed reductive [3 + 2] cycloaddition of the N‐hydroxylactam afforded the tricyclic isoxazolidine, which was ...
Sora Iwamoto   +15 more
wiley   +2 more sources

Dibasic Derivatives of Phenylcarbamic Acid as Prospective Antibacterial Agents Interacting with Cytoplasmic Membrane

open access: yesAntibiotics, 2020
1-[2-[({[2-/3-(Alkoxy)phenyl]amino}carbonyl)oxy]-3-(dipropylammonio)propyl]pyrrolidinium/azepan- ium oxalates or dichlorides (alkoxy = butoxy to heptyloxy) were recently described as very promising antimycobacterial agents. These compounds were tested in
Šárka Pospíšilová   +8 more
doaj   +1 more source

In Situ Study of the Photodegradation of Carbofuran Deposited on TiO\u3csub\u3e2\u3c/sub\u3e Film under UV Light, Using ATR-FTIR Coupled to HS-MCR-ALS [PDF]

open access: yes, 2013
The in situ study of the photodegradation of carbofuran deposited on a TiO2 catalyst film under UV light was carried out using the ATR-FTIR technique. The data were analyzed using a Hard–Soft Multivariate Curve Resolution-Alternating Least Squares (HS ...
Atifi, Abderrahman   +3 more
core   +1 more source

Insertion of carbon dioxide and isocyanide into tantalum-amide and tantalum-methyl bonds [PDF]

open access: yes, 2001
The methyl–amide complex [TaCp*(NtBu)Me(NMe2)] (1a) was isolated by reaction of the chloro–methyl [TaCp*(NtBu)MeCl] complex with LiNMe2. Reaction of the mono-amide compounds [TaCp*(NtBu)XY] (X=NMe2, Y=Me (1a); X=NHtBu, Y=Me (1b), Cl (1c)) with CO2 gives ...
Royo Gracia, Pascual   +1 more
core   +3 more sources

A Smart Ru‐Locked Chemiluminescence Probe via Bioorthogonal Activation for Highly Selective, Real‐Time and Noninvasive In Vivo Imaging of Thiol Dysregulation

open access: yesAggregate, EarlyView.
A smart Ru‐catalyzed chemiluminescence probe based on phenoxy‐adamantyl‐1,2‐dioxetane (PAD) scaffolds is developed for highly sensitive, real‐time in vivo imaging. Featuring a Ru‐locked activation mechanism and a chemiluminophore synthesized via an optimized route, this noninvasive probe enables selective, light‐independent detection of H₂S and thiol ...
Dongnan Guo   +11 more
wiley   +1 more source

Automated Iterative N─C and C─C Bond Formation

open access: yesAngewandte Chemie, EarlyView.
Automated iterative assembly of MIDA or TIDA boronate building blocks enables generalized and automated preparation of many different types of small functional molecules in a modular fashion. However, until now, this engine could not leverage nitrogen atoms as iteration handles, excluding molecules rich in N─C and C─C bonds.
Theodore Tyrikos‐Ergas   +14 more
wiley   +2 more sources

Molecular characterization of ethyl carbamate toxicity in Caenorhabditis elegans

open access: yesToxicology Reports, 2022
Ethyl carbamate is a common contaminant prevalent in fermented food with probable carcinogenic effects in animals. To date, other toxicological properties of ethyl carbamate are not well characterized.
Jordan J. Comfort   +4 more
doaj  

Diagnosis of Intoxication by the Organophosphate VX: Comparison Between an Electrochemical Sensor and Ellman´s Photometric Method

open access: yesSensors, 2008
An electrochemical sensor is introduced as a tool applicable for diagnosis of intoxication by cholinesterase inhibitors caused by the well-known nerve agent VX.
Kamil Kuca   +2 more
doaj   +1 more source

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