Results 91 to 100 of about 27,892 (233)

Microwave-assisted synthesis of novel 5-trichloromethyl-4,5-dihydro-1H-1-pyrazole methyl esters under solvent free conditions

Journal of the Brazilian Chemical Society, 2006
Twelve novel 5-trichloromethyl-4,5-dihydro-1H-1-pyrazole ethyl esters have been synthesized in good yields (70-98%) by using environmentally benign microwave induced techniques. The compounds were synthesized from the cyclocondensation of 1,1,1-trichloro-
Martins Marcos A. P., Beck Paulo, Machado Pablo, Brondani Sergio, Moura Sidnei, Zanatta Nilo, Bonacorso Helio G., Flores Alex F. C.   +7 more
doaj  

The crystal and molecular structure of pyrazole [PDF]

, 1960
H. W. W. Ehrlich
openalex   +1 more source

1,1'-Thiocarbonyl-bis-pyrazoles. Part I. Spectroscopic and Dipole Moment Studies. [PDF]

, 1968
Lars-Ola Carlsson, Jan Sandström, Gunnar Johansson, O. Tolboe, Jaakko Paasiv́irta   +4 more
openalex   +1 more source

Heterometallic Coordination Compounds with Amino‐Acid Dithiocarbamate Ligands

European Journal of Inorganic Chemistry, EarlyView.
This comprehensive review surveys the synthesis, molecular structures, and properties of heterobimetallic coordination compounds with amino‐acid dithiocarbamate ligands (AA‐DTCs), important O,S‐ditopic ligands. Most of the known compounds form infinite assemblies of different dimensions rather than molecular entities in the solid state.
Phil Köhler
wiley   +1 more source

The pyrazolo[4,3-c]pyrazole core as a novel and versatile scaffold for developing dual DYRK1A-CLK1 inhibitors targeting key processes of Alzheimer's disease pathology

European Journal of Medicinal Chemistry Reports
In the current study, we designed, synthesized, and characterized a series of substituted pyrazolo[4,3-c]pyrazoles. These novel compounds were evaluated in vitro for their inhibitory activity over a panel of protein kinases to determine their potential ...
Vaia-Argyro Bakalakou, Barbara Mavroidi, Amalia D. Kalampaliki, Béatrice Josselin, Stéphane Bach, Alexios-Leandros Skaltsounis, Panagiotis Marakos, Nicole Pouli, Maria Pelecanou, Vassilios Myrianthopoulos, Sandrine Ruchaud, Ioannis K. Kostakis   +11 more
doaj  

Exploring Bioinspired Ln3+ Complexes for Cu2+ Detection: Design and Efficacy as MRI Contrast Agents

European Journal of Inorganic Chemistry, EarlyView.
Gd3+ complexes bearing a bioinspired Cu2+‐binding site derived from ATCUN are studied as MRI contrast agents. The presence of two amino acids (GH) is necessary to bind Cu2+ and trigger a relaxivity increase. This is due to a higher number of H2O retained close to Gd3+ through H‐bonding with Cu2+. Remarkably, the system remains selective for Cu2+ vs Zn2+
Martina Sanadar, Katharina Zimmeter, Harlei Martin, Agnès Pallier, Bertrand Vileno, Peter Faller, Angélique Sour, Célia S. Bonnet   +7 more
wiley   +1 more source

Pyrazolyl‐Pyridine Ruthenium (II) Catalysts for Selective Hydrogen Generation Through Formic Acid Dehydrogenation

European Journal of Inorganic Chemistry, Accepted Article.
A series of pyridine‐pyrazolyl Ru(II) p‐cymene complexes of the type [RuCl(p‐cymene)L]X (C1‐C7, X = Cl, BPh4 or PF6), bearing different electronic and steric properties, were prepared by the reaction of 3,5‐disubstituted pyrazolyl‐pyridine ligands (L1‐L3) with [Ru(p‐cymene)Cl2]2 followed by salt metathesis with NaBPh4 or AgPF6.
Rotondwa Mphephu, M. Cassiem Joseph, Andrew John Swarts   +2 more
wiley   +1 more source

Regio‐ and Stereoselective Alkyl enol Ether Synthesis via Microwave‐Promoted, Base‐Catalysed Alkyne Hydroalkoxylation

European Journal of Organic Chemistry, EarlyView.
A straightforward method for the synthesis of alkyl enol ethers was developed, based upon microwave‐promoted alkyne hydroalkoxylation, requiring only alkyne and alcohol components and mild base catalysis. The reaction displayed broad substrate tolerance and was highly selective for Z‐configured, anti‐Markovnikov enol ether products.
Owaen Guppy, Alexis Perry
wiley   +1 more source

Metal‐Organic Frameworks‐Based Copper Catalysts for CO2 Electroreduction Toward Multicarbon Products

Exploration, EarlyView.
This review discusses design principles, preparation approaches, and performance achievements of metal‐organic frameworks (MOF)‐based Cu catalysts for electrochemical CO2 reduction to C2+ products. The correlation between synthesis, composition/structure, and catalytic properties was critically discussed to reveal catalytic mechanisms and performance ...
Chen Qin, Xuheng Li, Ting Wang, Zhen Xu, Kai‐Jie Chen, Fuping Pan   +5 more
wiley   +1 more source

Synthetic studies of hydrazine and guanidine: derivatives of 5-pyrazoles [PDF]

, 1968
J. Zauhar, Benoit F. Ladouceur
openalex   +1 more source