Preparation and Identification of some new Pyrazolopyrin derivatives and their Polymerizations study

Redha I. H. Al-Bayati; Mahmoud A Al-Issa; Zaynab H. Fadel Al-Mosawy

doi:10.21123/bsj.2014.11.2.378-386

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Publication Date

Sun Jun 01 2014

Journal Name

Baghdad Science Journal

Volume

11

Issue Number

2

DOI

10.21123/bsj.2014.11.2.378-386

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Preparation and Identification of some new Pyrazolopyrin derivatives and their Polymerizations study

Synthesis

Fused Pyrazoles

1-(3

6-dimethyl-4-oxo-1

4-dihydro-5H-pyrazolo [4

3-C] pyridin-5-yl)-1H-pyrrole-2

5-Dione S1

1-[2-(3

6-dimethyl-4-oxo-1-phenyl-1

4-dihydro-5H-pyrazolo[4

3-C]pyridin-5-yl)ethyl]-1H-pyrrole-2

5-DioneS2 and 1-(3

6-dimethyl-4-oxo-1-phenyl-1

4-dihydro-5H-pyrazolo[4

3-C]pyridin-5-yl)-1H-pyrrole-2

5-Dione S3

reactivity ratios

copolymer composition

Mean Sequence lengths.

Redha I. H. Al-Bayati

Mahmoud A Al-Issa

Zaynab H. Fadel Al-Mosawy

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Preparation and Identification of some new Pyrazolopyrin derivatives and their Polymerizations study

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Publication Date

Sun Dec 07 2014

Journal Name

Baghdad Science Journal

Adsorption of some Metal Ions from Aqueous Solution on Iraqi Rice Bran and Its Relation to the Physical Properties of these Metal Ions

Adsorption

Rice Bran

Cadmium

Copper

Cobalt

Iron

Nickel

Lead

Zinc.

Samir Mahmood

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Adsorption studies were carried out to test the ability of the Iraqi rice bran (Amber type) to adsorb some metals divalent cations (Cd2+, Co2+, Cu2+, Fe2+, Ni2+, Pb2+, and Zn2+) as an alternative tool to remove these pollutants from water. The Concentrations of these ions in water were measured using flame and flamless atomic absorption spectrophotometry techniques. The applicability of the adsorption isotherm on Langmuir or Freundlisch equation were tested and found to be dependent on the type of ions. The results showed different adsorptive behavior and different capacities of the adsorption of the ions on the surface of the bran. The correlation between the amounts adsorbed and different cation parameters including (electronegativity, io

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Publication Date

Tue Dec 11 2018

Journal Name

Iraqi National Journal Of Nursing Specialties

Assessment of the Efficiency for some Disinfectants Against the Microorganisms Isolated From the Wards of Newborn and Premature Babies in Baghdad Teaching Hospital

Newborn Babies

Disinfectants Efficiency

Yasameen

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Objective : To assess the efficiency for some disinfectants against the microorganisms isolated from
the wards of newborn and premature babies in Educational Baghdad Hospital .
Methodology :This study had done from 1\8\2014 untile 1\9\2014, we had selected three types of
disinfectants ( Incidine , Bleach and Microbac Forte )which were used for disinfection in the wards of
newborn babies at Educational Baghdad Hospital to assess their effect against the microorganisms
isolated from these wards and study the mixed affect of these disinfectants againt same
microorganisms .
Results : The results of the present study showed that there is affect of the different concentrations of
the used disinfectants against the micro

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Publication Date

Wed Aug 10 2022

Journal Name

Ibero-american Journal Of Exercise And Sports Psychology

The impact of mental training overlap on the development of some closed and open skills in five-aside football for middle school students

: Mental training. Closed. Open skills. Five-a-side football.

Ayad

Haidar

Reem

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The impact of mental training overlap on the development of some closed and open skills in five-aside football for middle school students, Ayad Ali Hussein, Haidar Abedalameer Habe

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Publication Date

Fri Jan 01 2016

Journal Name

European Journal Of Biology And Medical Science Research

Impact of an educational intervention of training of breast feeding promoting on the knowledge and attitude of a sample of mothers: a study of a pre and post evaluation.

Impact

educational intervention

training of breast feeding promoting

knowledge and attitude

mothers

pre and post evaluation.

Huda Adnan Habib

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Background: Health professionals have a crucial role in promotion, support and management of breastfeeding. To be effective in this effort, the clinician should focus on the issue from the preconception stage through pregnancy and delivery, and continue in subsequent infant care. Aim of the study: to assess the effectiveness of the UNICEF/WHO 40-hour of breast feeding training through the assess breastfeeding knowledge and attitudes of the health profession staff before and after training course.

Publication Date

Sat Nov 29 2025

Journal Name

Al-fatih Journal

Development of explosive power training with weights in a way the ups and downs and its impact on the improvement of some variables Albyukinmetekih and technical performance of the skill of a leap forward on your hands vaulting modern

م.د

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Publication Date

Sun Dec 07 2014

Journal Name

Baghdad Science Journal

Synthesis and Spectral Analysis of Mn (II), Cu (II) ,Ni (II) and Cd (II) Complexes with Mixed Ligands containing 1,10-phenanthroline and Schiff base derived of 4-aminoantipyrine

1

10-phenanthroline

Schiff base

metal complexes

4-aminoantipyrine.

Waleed Ali

Israa Hmood

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The complexes of Schiff base of 4-aminoantipyrine and 1,10-phenanthroline with metal ions Mn (II), Cu (II), Ni (II) and Cd (II) were prepared in ethanolic solution, these complexes were characterized by Infrared , electronic spectra, molar conductance, Atomic Absorption ,microanalysis elemental and magnetic moment measurements. From these studies the tetrahedral geometry structure for the prepared complexes were suggested.The prepared ligand of 4-aminoantipyrine was characterized by using Gc-mass spectrometer .

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(3)

Publication Date

Tue Jun 01 2010

Journal Name

Al-khwarizmi Engineering Journal

Study of NOx Emissions of S.I. Engine Fueled with Different Kinds of Hydrocarbon Fuels and Hydrogen

Miqdam T.

Qahtan A.

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Liquefied petroleum gas (LPG), Natural gas (NG) and hydrogen were used to operate spark ignition internal combustion engine Ricardo E6, to compare NOx emissions emitted from the engine, with that emitted from engine fueled with gasoline as a fuel.

The study was done when engine operated at HUCR for gasoline, compared with its operation at HUCR for each fuel. Compression ratio, equivalence ratio and spark timing were studied at constant speed 25rps.

The results appeared that NOx concentrations will be at maximum value in the lean side near the stoichiometric ratio, and reduced with moving away from this ratio for mixture at both s

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Publication Date

Sun Jan 01 2006

Journal Name

Diala Journal For Application Research

Study and calculation of the effects of excessive stress temperatures on the buoyant convection of clouds.

Abdullah

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Recent developments in two main phases of cumulus cloud studies are discussed; first the relations between the clouds and their energy sources in the subcloud layer and second, the interaction between the clouds and their environment in the cloud layer. Under the first heading, the various originating impulses for cumulus formation are mentionitd. and how the character of this impulse affects the spacing, scale and temperature structure of the clouds. The possible origins of trade cumuli are considered.

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Publication Date

Mon Jun 01 2020

Journal Name

Journal Of The College Of Languages (jcl)

Interlanguage Pragmatics of Non-Institutional Criticism: A Study of Native and Non-Native Speakers of English

Criticism

mitigating devices

pragmatic transfer

power

distance.

Nassier A. G.

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Criticism is inherently impolite and a face-threatening act generally leading to conflicts among interlocutors. It is equally challenging for both native and non-native speakers, and needs pre-planning before performing it. The current research examines the production of non-institutional criticism by Iraqi EFL university learners and American native speakers. More specifically, it explores to what extent Iraqi EFL learners and American native speakers vary in (i) performing criticism, (ii) mitigating criticism, and (iii) their pragmatic choices according to the contextual variables of power and distance. To collect data, a discourse-completion task was used to elicit written data from 20 Iraqi EFL learners and 20 American native speaker

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(1)

Publication Date

Sat Sep 01 2018

Journal Name

Polyhedron

Novel dichloro (bis {2-[1-(4-methylphenyl)-1H-1, 2, 3-triazol-4-yl-κN3] pyridine-κN}) metal (II) coordination compounds of seven transition metals (Mn, Fe, Co, Ni, Cu, Zn and Cd)

The 1

3-dipolar cycloaddition “click” reaction between an azide and an alkyne to give a 1

2

3-triazole was reported by Huisgen in 1961 [1]. In 2002 the Copper(I)-catalyzed Azide-Alkyne Cycloaddition (CuAAC) to prepare a 1

2

3-triazole was reported [2]

[3]. The existence of relatively basic nitrogen atoms in the 1

2

3-triazole rings

and the possibility of introducing additional donor groups in the substituents (Fig. 1)

made the CuAAC “click” reaction an attractive method to prepare differently substituted 1

2

3-triazoles. These compounds have been used as ligands to coordinate to various metal ions that display a range of applications such as in electrochemical and photochemical studies

in supramolecular chemistry

magnetism

metal-ion sensing and catalysis [4]. The reasons for the success of the “click” reaction

is that it is easy to carry out and is widely applicable. It is not affected by a variety of functional groups

and can be carried out with a variety of Cu(I) catalysts and solvents

including aqueous conditions. The Cu(I) catalysts overcome the high activation energy barrier of the non-catalyzed Huisgen reaction by changing the mechanism of the reaction. A large variety of copper catalysts can be used for the CuAAC reaction

on condition that the maximum concentration of Cu(I) species is generated during the reaction. The pre-catalyst can be a Cu(II) salt (usually CuSO4) together with a reducing agent (often sodium ascorbate) or a Cu(I) compound in the presence of a base or amine ligand and a reducing agent to prevent oxidation to Cu(II). Some strong oxidising cupric salts or complexes such as Cu(OAc)2 also work. The solvent is very flexible from organic to aqueous

with the most commonly used combination water + an alcohol (t-BuOH

MeOH or EtOH). The key role of the solvent or solvent mixture is to solubilize the substrates and Cu(I) catalyst in order to ensure rapid reactions. Such aqueous conditions are very useful for biochemical conjugations

as well as for organic syntheses. We recently reported on the synthesis of a series of differently substituted 1

2

3-triazole chromophores

the substituted 2-(1-phenyl-1H-1

2

3-triazol-4-yl)pyridine ligands [5]

see Fig. 2 middle

with substituents R = H (L1)

CH3 (L2)

OCH3 (L3)

COOH

F

Cl

CN

CF3

O(CH2)3CH3 and N(CH3)2. These versatile ligands were found to coordinate to various first row transition metals

such as manganese

cobalt and nickel [6]. Here we extend the series to include more first row transition metal(II) coordination compounds

iron

copper and zinc

as well as a second row transition metal(II) coordination compound

cadmium

containing the 2-(1-(4-methyl-phenyl)-1H-1

2

3-triazol-1-yl)pyridine chromophore (Fig. 2 right with R = CH3). This series of seven novel coordination compounds is the first series of pyridyl-triazole based transition metal coordination compounds where seven different transition metals are coordinated to the same 1

2

3-triazole chromophore

namely 2-(1-(4-methyl-phenyl)-1H-1

2

3-triazol-1-yl)pyridine.

Kinaan M

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