Results 71 to 80 of about 66,186 (324)

Poly(1,3,4-oxadiazoles) via aromatic nucleophilic displacement [PDF]

open access: yes, 1992
Poly(1,3,4-oxadiazoles) (POX) are prepared by the aromatic nucleophilic displacement reaction of di(hydroxyphenyl) 1,3,4-oxadiazole monomers with activated aromatic dihalides or activated aromatic dinitro compounds. The polymerizations are carried out in
Connell, John W.   +2 more
core   +1 more source

Determination of Dipyrone in pharmaceutical preparations based on the chemiluminescent reaction of the quinolinic hydrazide-H2O2-vanadium (IV) system and flow injection analysis [PDF]

open access: yes, 2011
A rapid, economic and sensitive chemiluminescent method involving flow-injection analysis was developed for the determination of dipyrone in pharmaceutical preparations.
Durand Alegría, Jesús Senén   +3 more
core   +2 more sources

Synthesis and Bioactivity of Hydrazide-Hydrazones with the 1-Adamantyl-Carbonyl Moiety

open access: yesMolecules, 2019
Reaction of 1-adamantyl carbohydrazide (1) with various substituted benzaldehydes and acetophenones yielded the corresponding hydrazide-hydrazones with a 1-adamantane carbonyl moiety.
V. H. Pham   +3 more
semanticscholar   +1 more source

Crystal structure of (E)-N′-(3,4-dihydroxybenzylidene)-4-hydroxybenzohydrazide

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2019
In the title benzohydrazide derivative, C14H12N2O4, the azomethine C=N double bond has an E configuration. The hydrazide connecting bridge, (C=O)—(NH)—N=(CH), is nearly planar with C—C—N—N and C—N—N=C torsion angles of −177.33 (10) and −174.98 (12 ...
Suchada Chantrapromma   +5 more
doaj   +1 more source

2,7-dichlorofluorescein hydrazide as a new fluorescent probe for mercury quantification: Application to industrial effluents and polluted water samples [PDF]

open access: yes, 2013
A new fluorescent probe 2,7-dichlorofluorescein hydrazide for mercury quantification in aqueous medium has been described. It is based on the spirolactam ring opening of colorless and nonfluorescent 2,7-dichlorofluorescein hydrazide induced by Hg2+ ions ...
Ambikapathi, G.   +3 more
core   +3 more sources

An Injectable, Dual Responsive, and Self-Healing Hydrogel Based on Oxidized Sodium Alginate and Hydrazide-Modified Poly(ethyleneglycol)

open access: yesMolecules, 2018
Oxidized sodium alginate is a handily modifiable polysaccharide owing to the pendant aldehyde groups which can form dynamic covalent bonds with amines, acylhydrazines, etc., providing oxidized sodium alginate-based hydrogels with stimuli-responsive ...
Lei Wang   +5 more
semanticscholar   +1 more source

(dme)MCl_3(NNPh_2) (dme= dimethoxyethane; M= Nb, Ta): A Versatile Synthon for [Ta═NNPh_2] Hydrazido(2-) Complexes [PDF]

open access: yes, 2010
Complexes (dme)TaCl_3(NNPh_2) (1) and (dme)NbCl_3(NNPh_2) (2) (dme =1,2-dimethoxyethane) were synthesized from MCl5 and diphenylhydrazine via a Lewis-acid assisted dehydrohalogenation reaction. Monomeric 1 has been characterized by X-ray, IR, UV−vis, ^(1)
Bercaw, John E., Tonks, Ian A.
core   +1 more source

Impairing Powerhouse in Colon Cancer Cells by Hydrazide–Hydrazone-Based Small Molecule

open access: yesACS Omega, 2018
Mitochondrion has emerged as one of the unconventional targets in next-generation cancer therapy. Hence, small molecules targeting mitochondria in cancer cells have immense potential in the next-generation anticancer therapeutics. In this report, we have
Sohan Patil   +4 more
semanticscholar   +1 more source

Crystal structure and Hirshfeld surface analysis of (±)-N′-(2-hydroxy-3-methoxybenzylidene)-2-(4-isobutylphenyl)propionohydrazide

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2022
The title molecule, C21H26N2O3, adopts a V-shaped conformation and is chiral at the C atom with methyl group attached at the common cut of the edges of the V-conformation and crystallizes as a racemate. It also contains an intramolecular O—H...N hydrogen
Shaaban K. Mohamed   +6 more
doaj   +1 more source

Functional poly(2-oxazoline)s by direct amidation of methyl ester side chains [PDF]

open access: yes, 2015
Poly(2-alkyl/aryl-2-oxazoline)s (PAOx) are biocompatible pseudopolypeptides that have received significant interest for biomedical applications in recent years.
Hoogenboom, Richard, Mees, Maarten
core   +2 more sources

Home - About - Disclaimer - Privacy