Synthesis and Characterization of New Oxazepines Compounds Derived From D- Galactose

Rasmia M. Rumez

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Publication Date

Fri Jan 30 2015

Journal Name

Journal Of The College Of Basic Education

Volume

21

Issue Number

87

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Synthesis and Characterization of New Oxazepines Compounds Derived From D- Galactose

Schiff bases

1

3-oxazepine

D-galactose

Rasmia M. Rumez

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New Schiff bases derived from D-galactose were synthesized by condensation of aldehyde (1,2:3,4-Di-O-isopropylidene-6-carboxaldehyde-α-D-galactopyranose) with different aromatic amines such as (4-bromo, 3-hydroxy, 4-iodo, 4-methoxy) aniline in dry benzene using glacial acetic acid as a catalyst. These compounds were converted to oxazepine derivatives by addition reaction with maleic anhydride in dry benzene as a solvent. The structures of the synthesized compounds have been characterized by elemental analysis, FTIR spectra, some of them by using 1HNMR spectra and measurement of its physical properties.

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Publication Date

Wed Jan 01 2020

Journal Name

Iop Conference Series: Materials Science And Engineering

Synthesis of anti-corrosion polymers from thiadiazole

Ibtisam Kalifa

Intisar Yahiya

Sara

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AbstractOne of the biggest problems facing many industries particularly oil, is the problem of corrosion, where the metal parts under the influence of the vital factors are eroded during use and storage, therefore, to lift the metal’s ability and to protect it against corrosion, corrosion inhibitors are used. For the first time in this research, polymers which contain sulfur - heterocyclic ring with a thiadiazole base were made. Anti- corrosion polymers were made on two stages, in the first stage, thiadiazole was made from hydrazine hydrate reaction to carbon disulfide, afterwards the first product was reacted with an excess of hydrazine. In the second stage, polymers were prepared by the r ... Show More

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Publication Date

Thu Mar 30 2017

Journal Name

Iraqi Journal Of Pharmaceutical Sciences ( P-issn 1683 - 3597 E-issn 2521 - 3512)

Synthesis of New Cyclic Amines-Linked Metronidazole Derivatives as Possible Prodrugs

Maadh

Nadhum

Shakir

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Certain cyclic amine derivatives of metronidazole via acetate spacer were prepared. Cyclic amines used are piperidine and piperazine to improve the physicochemical properties and reduce some of metronidazole side effects. This is believed to be done by modification of its structural features to get prodrugs with improved properties over that of metronidazole. The present work includes esterification of metronidazole with choroacetic acid, N-alkylation of the cyclic amines by the halogenated ester and characterization of their structures by spectral(UV and IR) and elemental(CHN)analysis.The melting points, degree of solubilities and partition coefficients were also determined. Both metronid

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(1)

Publication Date

Tue May 01 2018

Journal Name

Journal Of Physics: Conference Series

Cytotoxic effects of new synthesis heterocyclic derivatives of Amoxicillin on some cancer cell lines

Oxazepine

Thiazolidin-4-one

Imidazolidin-4-one

Tetrazole

β-lactam

Amoxicillin

Anticancer

Cell Line

Cytotoxic effects.

Muna

D F

A F

M M

B A

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A new Schiff base [I] was prepared by refluxing Amoxicillin trihydrate and 4-Hydroxy- 3,5-dimethoxybenzaldehyde in aqueous methanol solution using glacial acetic acid as a catalyst. The new 1,3-oxazepine derivative [II] was obtained by Diels- Alder reaction of Schiff base [I] with phthalic anhydride in dry benzene. The reaction of Schiff base [I] with thioglycolic acid in dry benzene led to the formation of thiazolidin-4-one derivative [III]. While the imidazolidin-4-one [IV] derivative was produced by reacting the mentioned Schiff base [I] with glycine and triethylamine in ethanol for 9 hrs. Tetrazole derivative [V] was synthesized by refluxing Schiff base [I] with sodium azide in dimethylformamid DMF. The structure of synthesized compound

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Publication Date

Sun Dec 03 2017

Journal Name

Baghdad Science Journal

Synthesis and Characterization of Some Metal Complexes of [4-Methoxy-N-(pyrimidine-2-ylcarbamothioyl)benzamide]

"2-AminoiPyrimidine

4-Methoxy benzoyl isothiocyanate

complexes"

Basima M .

Bushra M.

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A new ligand [4-Methoxy -N-(pyrimidine-2-ylcarbamothioyl) benzamide] (MPB) was synthesized by reactioniofi(4-Methoxyibenzoyliisothiocyanate)withi(2-aminopyri-midine). The Ligand was characterized by elemental micro analysis (C.H.N.S),(FT-IR) (UV- Vis) and (1Hi,13CNMR)spectra. Some transition metals complexes of this ligand were prepared and characterized by (FT-IR, UV-Vis) spectra conductivity measurements magnetic susceptibility and atomic absorption. From the obtained results the molecular formula of all complexes was suggested to be [M(MPB)2Cl2] (M+2i=Cu, Mn, Co ,Ni ,Zn ,Cd and Hg),the proposed geometrical structure for all complexes was an octahedral.

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(2)

Publication Date

Sun Jun 05 2016

Journal Name

Baghdad Science Journal

Synthesis and Characterization of Multishapes of Fe3O4 Nanoparticle by Solve-Hydrothermal Method Using Microwave Radiation

"Magnetite

microwave

oleic acid

SEM

AFM"

Ahlam Jameel

Waleed Madhloom

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Iron oxide(Fe3O4) nanoparticles of different sizes and shapes were synthesized by solve-hydrothermal reaction assisted by microwave irradiation using ferrous ammonium sulfate as a metal precursor, oleic acid as dispersing agent, ethanol as reducing agent and NaOH as precipitating agent at pH=12. The synthesized Fe3O4 nano particles were characterized by X-ray diffraction (XRD), FTIR and thermal analysis TG-DTG. Sizes and shapes of Fe3O4 nanoparticles were characterized by Scanning Electron Microscopy (SEM), and atomic force microscopy (AFM).

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(5)

Publication Date

Sun Jan 01 2023

Journal Name

Materials Today: Proceedings

Synthesis and characterization of some mixed ligands complexes of β-enaminone with some metal ions

Fatimah

Ahmed T.

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(1)

Publication Date

Sat May 01 2021

Journal Name

Journal Of Physics: Conference Series

On The Convergence Speediness of K * and D-Iterations

A Q

Z H

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AbstractIn this article, we introduced a new concept of mappings called δZA - Quasi contractive mapping and we study the K*- iteration process for approximation of fixed points, and we proved that this iteration process is faster than the existing leading iteration processes like Noor iteration process, CR -iteration process, SP and Karahan Two- step iteration process for 𝛿𝒵𝒜 − quasi contraction mappings. We supported our analytic proof by a numerical example.

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Publication Date

Sun Jul 01 2001

Journal Name

Bulletin Of The Iraq Natural History Museum (p-issn: 1017-8678 , E-issn: 2311-9799)

A new species of Wohlfahrtia Brauer and Bergenstam (Dipetera: Sarcophagidae) from Iraq

N. A.

M. S.

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Wohlfahrtia longicorpuris sp. nov., from Iraq described, illustrated and distinguished from related species. The adults were reared from larvae collected from ulcer of a human face. Wohlfahrtia Brauer and Bergenstam is one of most important genus,which contains 19 species (Pape, 1998), some of these produce myiasis in mammals (Verves,1985).Taxonomic revision of this genus has been carried out by the following authors: Rohdendrof (1956), Zumpt (1965) and Pape (1996).

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Publication Date

Wed Aug 13 2025

Journal Name

Molecular Crystals And Liquid Crystals

Synthesis, characterization and mesomorphic behavior of twin pyrazole ligands and their metal complexes containing dithiocarbamat units

Jumbad H.

Hasan. A.

Nehaya

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(1)

Publication Date

Thu Oct 03 2024

Journal Name

Applied Organometallic Chemistry

Synthesis, Characterization, Molecular Docking, Cytotoxicity, and Antimicrobial Activity of Schiff Base Ligand and Its Metal Complexes

K. M.

Hanan Adnan Shaker

Shatha M. H.

Amer J.

Taghreed Hashim

Ali J. A.

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ABSTRACTA Schiff base ligand (L) was synthesized via condensation of <italic>N</italic>‐(1‐naphthyl)ethylenediamine dihydrochloride with phthalaldehyde. The ligand was characterized by FT‐IR, UV–Vis, 1H NMR, mass spectrometry, and elemental analysis (C, H, N). Five metal complexes (Co(II), Ni(II), Cu(II), Zn(II), and Cd(II)) were prepared with the ligand in a 1:1 (M:L) ratio using an aqueous ethanol solution. The complexes were characterized by FT‐IR, UV–Vis, mass spectrometry, and elemental analysis (C, H, N). Additionally, 1H NMR spectroscopy was employed for Cd(II) complex. Antimicrobial activity of the ligand and its metal complexes against ... Show More

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