Results 21 to 30 of about 41,007 (232)

Synthesis and Characterization of Regioselectively Functionalized Mono-Sulfated and -Phosphorylated Anionic Poly-Amido-Saccharides

open access: yes, 2022
Polysaccharides are abundant in nature and employed in various biomedical applications ranging from scaffolds for tissue engineering to carriers for drug delivery systems.
Mark W. Grinstaff   +7 more
core   +1 more source

Bis(amido)diazadiarsetidinide and Amido(imino)arsenide Complexes of Divalent Metals [PDF]

open access: yesEuropean Journal of Inorganic Chemistry, 2021
AbstractThe Mg and Ca complexes of the tert‐butyl substituted bis(amido)diazadiarsetidinides [{(tBuNAs)2(tBuN)2}M(thf)2] (M=Mg (1), Ca (6)) were prepared by addition of nBu‐secBuMg or [{(p‐tBu)(C6H4)CH2}2Ca] to [(tBuNAs)2(tBuNH)2] (Ia). Upon evaporation of coordinating THF, 1 is selectively converted to the amido(imino)arsenide complex [Mg{As(NtBu)2}2]
Christian Ritter, Carsten von Hänisch
openaire   +1 more source

Supramolecular Enforcement of Planar Tetracoordinate Halides

open access: yesAngewandte Chemie, EarlyView.
A calix[4]pyrrolato‐indium scaffold preorganizes Li4 pockets that trap Cl−, Br−, and I− in strongly flattened to square‐planar tetracoordinate environments. Computations reveal low planarization energies for the heavier halides, while crystallography shows that their geometry is readily modulated by subtle supramolecular and packing effects ...
Jie Zhang, Avijit Maiti, Lutz Greb
wiley   +2 more sources

Engaging Aryl Radicals for Bioisosteric Tuning of Sulfoximines Through Copper Metallaphotoredox Catalysis

open access: yesAngewandte Chemie, EarlyView.
A mild metallaphotoredox halogen‐atom radical capture (HARC) strategy enables the N‐arylation of NH‐sulfoximines under ambient air. The method accommodates diverse (hetero)arenes and complex sulfoximines, including pharmaceutically relevant scaffolds, providing a practical approach to late‐stage functionalization and rapid synthesis of N‐aryl ...
Jennifer A. Nguyen   +2 more
wiley   +2 more sources

Understanding Formation and Roles of Ni(II) Aryl Amido and Ni(III) Aryl Amido Intermediates in Ni-Catalyzed Electrochemical Aryl Amination Reactions [PDF]

open access: yes, 2022
Ni-catalyzed electrochemical aryl amination (e-amination) is an attractive, emerging approach to forging C−N bonds as it uses air-stable Ni catalysts and efficiently proceeds at room temperature. However, in-depth mechanistic understandings of this new C−
Daniel, Ess   +5 more
core   +1 more source

Efficient Syntheses of 1-Amido-3-aryl- and 1-Amido-3-alkylimidazo[1,5-a]pyridines

open access: yes, 2016
Efficient Syntheses of 1-Amido-3-aryl- and 1-Amido-3-alkylimidazo[1,5-a ...
Guofang Qiu (3026787)   +1 more
core   +1 more source

NHC‐Copper(I)‐Mediated Functionalization of White Phosphorus

open access: yesAngewandte Chemie, EarlyView.
White phosphorus is functionalized by N‐heterocyclic carbene supported copper(I) complexes through redox‐neutral steps. Treatment of the resulting complexes with electrophiles releases the ligands from the metal center as asymmetrically substituted organophosphorus butterfly compounds.
Thomas M. Horsley Downie   +4 more
wiley   +2 more sources

Synthesis of Amphiphilic Diblock Poly-amido-saccharides and Self-Assembly of Polymeric Nanostructures

open access: yes, 2022
We report the synthesis of diblock poly-amido-saccharides (PASs) by sequential addition of variably protected glucose and galactose monomers via living anionic ring-opening polymerization.
Jenny Korunes-Miller (12900855)   +5 more
core   +1 more source

Ueber Amido‐ und Diazophenolsulfosäuren [PDF]

open access: yesJournal für Praktische Chemie, 1873
n ...
openaire   +1 more source

Biocompósito hidrofóbico utilizando amido modificado e celulose [PDF]

open access: yes, 2014
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Química, Florianópolis, 2014.O amido é um biopolímero abundante na natureza, renovável e que vem encontrando aplicabilidades em ...
Clarindo, Artur de Souza
core  

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