Results 21 to 30 of about 8,645 (211)

Vinylogous hydrazone activation in stereoselective synthesis of 2,3-dihydro-1H-pyrrolizines – an organocatalytic, metal-free route to ketorolac [PDF]

, 2022
In this paper, the application of organocatalysis in the synthesis of 2,3-dihydro-1H-pyrrolizines is demonstrated. α,β-Unsaturated aldehydes and pyrrole-based hydrazone readily participated in the formal (3+2)-cycloaddition that was realized according to
Łukasz, Albrecht, Beata, Łukasik, Sebastian, Frankowski, Justyna, Kowalska, Lesław, Sieroń   +4 more
core   +1 more source

Synthetic route for hydrazone derivatives H1-H5. [PDF]

, 2021
Synthetic route for hydrazone derivatives H1-H5.
Arlan de Assis Gonsalves (11752026), Jackson Roberto Guedes da Silva Almeida (7473914), Mariana Gama e Silva (5570888), Érica Martins de Lavor (5570891), Luciano Augusto de Araújo Ribeiro (9583159), Harold Hilarion Fokoue (11752023), Maria Alice Miranda Bezerra Medeiros (11752002), Jussara de Jesus Silva (11752020), Cleônia Roberta Melo Araújo (4869559), Cícero André Ferreira Macedo (11752011), Thiala Alves Feitosa (11752017), Jackson de Menezes Barbosa (11752005), Tiago Feitosa Ribeiro (11752008), Luiz Antonio Miranda de Souza Duarte-Filho (11752014)   +13 more
core   +1 more source

Hydrazone-Linkage-Based Self-Healing and Injectable Xanthan–Poly(ethylene glycol) Hydrogels for Controlled Drug Release and 3D Cell Culture [PDF]

, 2018
Polymeric hydrogels have been extensively explored for controlled drug-delivery applications, but there is an increasing demand for smart drug delivery combined with tunable physicochemical attributes and tissue engineering potential. In this work, novel
Sagarika Taneja (5733173), Peeyush Kumar Sharma, Sagarika Taneja, Yashveer Singh, Yashveer Singh (1921462), Peeyush Kumar Sharma (5733170)   +5 more
core   +1 more source

Preparation and Antimicrobial Activity of s-Triazine Hydrazones of 7-Hydroxy Coumarin and Their Metal Complexes

E-Journal of Chemistry, 2009
Metal complexes of 7-hydroxy coumarin hydrazone of s-triazine derivatives derived from 7-hydroxy-8-aceto-N-(4',6’-dichloro-1',3',5'-s-triazine) coumarin hydrazone and transition metals have been synthesized and screened for their antibacterial ...
G. R. Jani, K. B. Vyas, Zudas Franco
doaj   +1 more source

[N′-(5-Bromo-2-oxidobenzylidene-κO)-2-chlorobenzohydrazidato-κ2N′,O](methanol-κO)(methanolato-κO)oxidovanadium(V)

Acta Crystallographica Section E, 2011
The VV atom in the title complex, [V(C14H8BrClN2O2)(CH3O)O(CH3OH)], is six-coordinated by one phenolate O, one imine N and one enolic O atom of the hydrazone ligand, one oxide O atom, one methanol O atom and one methoxide O atom in a distorted octahedral
Fu-Ming Wang
doaj   +1 more source

6-Bromo-2'-(2-chlorobenzylidene)nicotinohydrazide and 6-Bromo-2'-(3-bromo-5-chloro-2-hydroxybenzylidene)nicotinohydrazide Methanol Solvate: Synthesis, Characterization, Crystal Structures and Antimicrobial Activities

Acta Chimica Slovenica, 2021
Two newly synthesized nicotinohydrazones, 6-bromo-2'-(2-chlorobenzylidene)nicotinohydrazide (1) and 6-bromo-2'-(3-bromo-5-chloro-2-hydroxybenzylidene)nicotinohydrazide methanol solvate (2), have been obtained and structurally characterized by ...
Hai-Yun Zhu
doaj   +1 more source

New Amino Acid-Based Thiosemicarbazones and Hydrazones: Synthesis and Evaluation as Fluorimetric Chemosensors in Aqueous Mixtures

Molecules, 2023
Bearing in mind the interest in the development and application of amino acids/peptides as bioinspired systems for sensing, a series of new phenylalanine derivatives bearing thiosemicarbazone and hydrazone units at the side chain were synthesised and ...
Cátia I. C. Esteves, Maria Manuela M. Raposo, Susana P. G. Costa   +2 more
doaj   +1 more source

Novel DNA Binding Agents: Hydrazone-based Helical Trinuclear Ag Complexes [PDF]

, 2009
Using the hydrazone linker and the self-assembly, functionalized Ag complexes with a helical structure showed a 2.96 Å distance between metal-metal bonds, well-aligned aromatic rings, and the strong affinity toward DNA ...
鄭建中; Cheng, Chien-chung; Hung, Sue-mei; Yeh, Chia-yi; Chang, Chi-san; 王文竹; Wang, Wen-jwu
core   +1 more source

(E)-4-Hydroxy-N′-(2-hydroxy-3,5-diiodobenzylidene)-3-methoxybenzohydrazide methanol monosolvate

Acta Crystallographica Section E, 2012
In the title compound, C15H12I2N2O4·CH3OH, the hydrazone molecule exists in an E conformation with respect to the C=N bond. The dihedral angle between the rings is 11.9 (2)°.
Xiao-Yan Li
doaj   +1 more source

Synthesis and Biological Activity Characterization of Novel 5-Oxopyrrolidine Derivatives with Promising Anticancer and Antimicrobial Activity

Pharmaceuticals, 2022
The 1-(4-acetamidophenyl)-5-oxopyrrolidine carboxylic acid was applied for synthesizing derivatives bearing azole, diazole, and hydrazone moieties in the molecule.
Karolina Kairytė, Birutė Grybaitė, Rita Vaickelionienė, Birutė Sapijanskaitė-Banevič, Povilas Kavaliauskas, Vytautas Mickevičius   +5 more
doaj   +1 more source