Results 1 to 10 of about 22,641 (251)

Novel Pyrimidinethione Hydrazide Divalent and Trivalent Metal Complexes for Improved High-Performance Antimicrobial and Durable UV Blocking Cellulosic Fabric

open access: yesInorganics, 2023
Ultraviolet (UV)-protective and antimicrobial cotton fabrics are necessary for the protection of our skin. In this article, a pyrimidinethione hydrazide (PTH) derivative ligand was complexed with Mn, Co, Ni, Cu, Zn, and Cd as divalent metals and Fe and ...
Saeed El-Sayed Saeed   +3 more
doaj   +1 more source

Synthesis a Number of Heterocyclic Compounds and some of chalcones Derived From Levofloxacin

open access: yesTikrit Journal of Pure Science, 2023
The hydrazide (1) was used as synthone for the following Compound pyridazine-3,6-dione (2) by reaction of hydrazide (1) with maleic  anhydride and Compound phthalazine-1,4-dione (3) by the reaction of  hydrazide (1) with phthalic anhydride.
Ekram Abdullah Basheer   +2 more
doaj   +1 more source

Synthesis, Characterization and Biological Evaluation of Novel Benzamidine Derivatives: Newer Antibiotics for Periodontitis Treatment

open access: yesAntibiotics, 2022
Periodontal disease (PD) is complex polymicrobial disease which destroys tooth-supporting tissue. Although various synthetic inhibitors of periodontitis-triggering pathogens have been recognized, their undesirable side effects limit their application ...
Mohammad Auwal Sa’ad   +5 more
doaj   +1 more source

2-(Naphthalen-2-yloxy)-N′-[2-(naphthalen-2-yloxy)acetyl]acetohydrazide monohydrate

open access: yesIUCrData, 2021
The title compound, C24H20N2O4·H2O, crystallizes with half a molecule of 2-(naphthalen-2-yloxy)-N′-[2-(naphthalen-2-yloxy)acetyl]acetohydrazide and half a water molecule in the asymmetric unit. In the crystal, molecules form planes parallel to (011). Two
Gamal A El-Hiti   +5 more
doaj   +1 more source

Preparation of a number of heterocyclic compounds derived from benzotrazole [PDF]

open access: yesمجلة التربية والعلم, 2013
In this thesis, a number of heterocyclic compounds with  five-memberd  , such as substituted oxadiazole  , thiadiazole , pyrazole , iso andoline-1,3-dione , also the preparation of  pyrroline and pyrrolidine compounds .      The  ester  compound  (1) was
Mohamed Mohamed, Ahmed Ahmed
doaj   +1 more source

N1,N4-bis(2-(7,8-dimethyl-2,4-dioxo-3,4-dihydrobenzo[g]pteridin-10(2H)-yl)ethylidene)succinohydrazide

open access: yesMolbank, 2022
The title compound, N′1,N′4-bis(2-(7,8-dimethyl-2,4-dioxo-3,4-dihydrobenzo[g]pteridin-10(2H)-yl)ethylidene)succinohydrazide (1), was obtained by the reaction of formylmethylflavin and succinic acid dihydrazide.
Taishu Kawada   +6 more
doaj   +1 more source

Syntheses, Characterizations, and Inhibition Activities Against Coxsackievirus B3 of Iodobenzoic Hydrazide Functionalized Hexamolybdates

open access: yesFrontiers in Chemistry, 2022
A class of iodobenzoyldiazenido-functionalized POMs (TBA)3 [Mo6O18(=N=NCOAr)] (Ar = Ph-o-I (1); Ph-m-I (2); Ph-p-I (3); Ph-3,4-I2(4); Ph-2,3,5-I3(5) (TBA = tetrabutylammonium) were prepared via the refluxing reaction of α-octamolybdates, DCC, and ...
Long-Sheng Wang   +10 more
doaj   +1 more source

Synthesis of some substituted 1,3,4-oxadiazoles, thiadiazoles and 1,2,4-triazoles [PDF]

open access: yesمجلة التربية والعلم, 2009
In this paper the synthesis of some substituted 1,3,4-oxadiazoles, 1,3,4-thiadiazoles and 1,2,4-triazoles is reported. Ethyl methacrylate was treated with hydrazine hydrate in ethanol to give the corresponding hydrazide (1).
Shereen R. Mohamed
doaj   +1 more source

New Hydrazones Bearing Thiazole Scaffold: Synthesis, Characterization, Antimicrobial, and Antioxidant Investigation

open access: yesMolecules, 2015
New series of hydrazones 5–18 were synthesized, in good yields, by reacting 4-methyl-2-(4-(trifluoromethyl)phenyl)thiazole-5-carbohydrazide with differently substituted benzaldehyde.
Cristina Nastasă   +4 more
doaj   +1 more source

Crystal structure, Hirshfeld surface analysis and geometry optimization of 2-hydroxyimino-N-[1-(pyrazin-2-yl)ethylidene]propanohydrazide

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2022
In the molecule of the title compound, C9H11N5O2, the oxime and hydrazide groups are situated in a cis-position in relation to the C—C bond linking the two functional groups.
Maksym O. Plutenko   +4 more
doaj   +1 more source

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