Results 61 to 70 of about 30,156 (257)

N-Aminopyridinium reagents as traceless activating groups in the synthesis of N-Aryl aziridines

Nature Communications, 2022
Aziridines are useful intermediates, present in important synthetic targets. Here, the authors show a strategy for the synthesis of N-aryl aziridines based on N-aminopyridinium reagents followed by Ni-catalyzed C–N cross-coupling of N-pyridinium ...
Hao Tan, Samya Samanta, Asim Maity, Pritam Roychowdhury, David C. Powers   +4 more
doaj   +1 more source

Amine catalysis for the organocatalytic diboration of challenging alkenes [PDF]

, 2016
© 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim The generation of in situ sp 2 –sp 3 diboron adducts has revolutionised the synthesis of organoboranes.
Althaus, Blaisdell, Bonet, Bonet, Bonet, Burns, Cade, Cid, Cid, Clegg, Cuenca, Dewhurst, Dutheuil, Fang, Gao, Gao, Kleeberg, Kojima, Lee, Lee, Miralles, Miralles, Mkhalid, Neeve, Nguyen, Pietsch, Pubill-Ulldemolins, Sanz, Schmidt, Stymiest, Thorpe, Watson, Yanga, Yoshimura, Zhang, Zheng   +35 more
core   +1 more source

Intrabandgap States Engineering in Functionalized Nanodiamond to Generate Solvated Electrons for Photocatalysis Under Solar Illumination

Advanced Functional Materials, EarlyView.
The negative electron affinity of diamond allows to emit highly reductive electrons. By introducing intra‐bandgap states and an optimized electron transfer mechanism by surface functionalization with Ru(bpy)3, the formation of solvated electrons is achieved upon solar irradiation.
Benjamin Kiendl, Arsène Chemin, Adam H. Day, Rocio B. Rodriguez, Sneha Choudhury, Franziska Buchner, Kaan Atak, Christoph Merschjann, Emina Hadzifejzovic, Tim D. W. Claridge, Karin Larsson, Amélie Venerosy, Mailis M. Lounasvuori, Natalia Zabarska, Boyan Iliev, Thomas J. S. Schubert, Hugues A. Girard, Jean‐Charles Arnault, John S. Foord, Tristan Petit, Anke Krueger   +20 more
wiley   +1 more source

Multiple States of Nitrile Hydratase from Rhodococcus equi TG328-2: Structural and Mechanistic Insights from Electron Paramagnetic Resonance and Density Functional Theory Studies [PDF]

, 2017
Iron-type nitrile hydratases (NHases) contain an Fe(III) ion coordinated in a characteristic “claw setting” by an axial cysteine thiolate, two equatorial peptide nitrogens, the sulfur atoms of equatorial cysteine-sulfenic and cysteine-sulfinic acids, and
Stein, Natalia, Gumataotao, Natalie, Hajnas, Natalia, Wu, Rui, Wasantha Lankathilaka, Karunagala Pathiranage, Bornscheuer, Uwe, Liu, Dali, Fiedler, Adam T., Holz, Richard C., Bennett, Brian   +9 more
core   +1 more source

Synthesis of [(1,2,3-Triazol-1-yl)methyl]boronic Acids Through Click Chemistry: Easy Access to a Potential Scaffold for Protease Inhibitors [PDF]

, 2015
Stereoselective synthesis of previously unreported [(1,2,3-triazol-1-yl)methyl]boronic acids has been achieved from azidomethylboronates by copper-catalyzed azide–alkyne cycloaddition reaction.
CASELLI, Emilia, PRATI, Fabio, Romagnoli, Chiara   +2 more
core   +1 more source

An Ultrafast Self‐Gelling Versatile Hydrogel for Rapid Infected Burn Wound Repair in Military Medicine

Advanced Functional Materials, EarlyView.
A self‐gelling PG@PAC (POD/Gel‐CDH@PA/CHX) powder is developed for infected burn care in austere settings. Upon contact with wound exudate, it instantly forms an adhesive hydrogel, providing simultaneous hemostasis, broad‐spectrum antibacterial activity, reactive oxygen species scavenging, and immunomodulation. In a murine model of S.
Liping Zhang, Zhangrui Wu, Xiansheng Zhao, Geng Wang, Quyang Yang, Minxia zhang, Xiaowei Wang, Xiujun Cheng, Changyue Wu, Dan Wu, Yutian Yang, Canbin Dong, Tao Zhang, Weiqiang Tan, Ningwen Zhu   +14 more
wiley   +1 more source

Direct deoxygenative borylation of carboxylic acids

Nature Communications, 2021
Converting a carboxylic acid into a boronic acid, which makes a useful chemical handle from a feedstock chemical, currently relies on decarboxylation and requires metal catalysts and prior functionalization.
Jianbin Li, Chia-Yu Huang, Mohamad Ataya, Rustam Z. Khaliullin, Chao-Jun Li   +4 more
doaj   +1 more source

A Suzuki Coupling Based Route to 2,2'-Bis(2-indenyl)biphenyl Derivatives [PDF]

, 2002
Because of the promising performance in olefin polymerization of 2,2'-bis(2-indenyldiyl)biphenyl zirconium dichloride, we developed a new and broadly applicable route to 2,2'-bis(2-indenyl)biphenyl derivatives.
Arts, Henricus J.,, Beijer, Felix H.,, Gruter, Gert-Jan M.,, IJpeij, Edwin G.,, Newton, Claire,, Vries, Johannes G. de,   +5 more
core   +3 more sources

Through Diamond Robust Surface Enhanced Raman Spectroscopy

Advanced Functional Materials, EarlyView.
Thin film diamond growth offers a unique opportunity for Surface Enhanced Raman Spectroscopy (SERS); the encapsulation of plasmonic nanostructures within a transparent, chemically stable, and physically robust coating. The diamond acts as both a window and protective layer, enabling illumination of the plasmonic nanostructures through the diamond ...
Kieran N. Twaddle, Rebecca J. Watkins, Ralph J. Moors, Massimiliano L.A. Ramsay, Richard B. Jackman   +4 more
wiley   +1 more source

Two Cocrystals of Phenazine with Different Phenylboronic Acids

Molbank
Boronic acids are an important class of molecules diversely used in organic synthesis, catalysis, medicinal chemistry, and for the design of functional materials. Particularly, aryl boronic acids in the solid state are known to exhibit pharmaceutical and
Stijn Germonpré, Subhrajyoti Bhandary, Kristof Van Hecke   +2 more
doaj   +1 more source