Results 31 to 40 of about 20,000 (189)

Synthesis and pharmacological evaluation of several N-(2-nitrophenyl)piperazine derivatives [PDF]

open access: yesJournal of the Serbian Chemical Society, 2007
Six newly synthesized heterocyclic (2-nitrophenyl)piperazines, with a specific structure of the heteroaryl group, whichmimics the catechol moiety of dopamine (benzimidazoles and substituted benzimidazoles), were evaluated for their binding affinity to ...
DEANA ANDRIC   +6 more
doaj   +3 more sources

Substituted Piperazines as Novel Potential Radioprotective Agents

open access: yesMolecules, 2020
The increasing risk of radiation exposure underlines the need for novel radioprotective agents. Hence, a series of novel 1-(2-hydroxyethyl)piperazine derivatives were designed and synthesized. Some of the compounds protected human cells against radiation-
Alzbeta Filipova   +15 more
doaj   +1 more source

Piperazine in Feeds [PDF]

open access: yesJournal of AOAC INTERNATIONAL, 1964
Abstract Foucry’s colorimetric method of analysis, suggested by Cavett and Heotis for the analysis of piperazine in feeds, was studied collaboratively this year in mash and pellets. Early results show that the method can be used for the analysis of piperazine in pelleted feeds; however, there is larger variation than expected and the ...
openaire   +1 more source

Twelve 4-(4-methoxyphenyl)piperazin-1-ium salts containing organic anions: supramolecular assembly in one, two and three dimensions

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2019
Twelve 4-(4-methoxyphenyl)piperazin-1-ium salts containing organic anions have been prepared and structurally characterized. The monohydrated benzoate, 4-fluorobenzoate, 4-chlorobenzoate and 4-bromobenzoate salts, C11H17N2O+·C7H5O2−·H2O (I), C11H17N2O ...
Haruvegowda Kiran Kumar   +3 more
doaj   +1 more source

Synthesis and Anticonvulsant Activity of Some Quinazolin-4-(3H)-one Derivatives

open access: yesMolecules, 2008
A number of 3-substituted-2-(substituted-phenoxymethyl) quinazolin-4(3H)-one derivatives 4a,b, 5a-c, 6, 7a-f, 8a-e and 9a,b have been synthesized. Their structures have been elucidated on the basis of elemental analyses and spectroscopic studies (IR, 1H ...
Safinaz Abbas   +2 more
doaj   +1 more source

Synthesis, biological evaluation and docking analysis of substituted piperidines and (2-methoxyphenyl)piperazines [PDF]

open access: yesJournal of the Serbian Chemical Society, 2016
A series of sixteen novel substituted piperidines and (2-methoxyphenyl)piperazines were synthesized, starting from the key intermediates 1-(2-methoxyphenyl)-4-(piperidin-4-yl)piperazine and 1-(2-methoxyphenyl)-4-(piperidin-4-ylmethyl)piperazine.
Penjišević Jelena Z.   +6 more
doaj   +1 more source

A structural study of 2,4-dimethylaniline derivatives

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2018
Crystallographic studies of nitrogen-containing small molecules aid in the elucidation of their structure–activity relationships and modes of aggregation.
Samuel C. Penner   +2 more
doaj   +1 more source

Synthesis of novel antibacterial and antifungal dithiocarbamate-containing piperazine derivatives via re-engineering multicomponent approach

open access: yesHeliyon, 2022
A metal-free multicomponent synthetic route for the diverse preparation of dithiocarbamate-containing piperazine derivatives was developed through the C–N bond cleavage of DABCO ring.
Azim Ziyaei Halimehjani   +5 more
doaj   +1 more source

Modeling piperazine thermodynamics

open access: yesEnergy Procedia, 2011
AbstractA thermodynamic model in Aspen Plus® was developed to predict properties of piperazine (PZ)/H2O and PZ/H2O/CO2. A sequential regression was performed to represent recently acquired loaded and unloaded heat capacity, CO2 solubility, CO2 activity coefficient, speciation, and unloaded and loaded amine volatility data.
Peter T. Frailie   +3 more
openaire   +2 more sources

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