Results 11 to 20 of about 14,359 (248)
Determination of some imines structures derived from salicylaldehyde with phenylene diamines by physical methods [PDF]
Kirkuk Journal of Science, 2012 The project is concerned with the preparation of four imines derived from salicylaldehyde with some aromatic primary amines, namely, o,m and p–phenylene diamine.These imines were identified by physical means available, namely the melting points, UV
A.S.P. Azzouz +2 more
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Asymmetric Reactions of N-Phosphonyl/Phosphoryl Imines
Molecules, 2023 The asymmetric reactions of imines continued to attract the attention of the scientific community for decades. However, the stereoselective reactions of N-phosphonyl/phosphoryl imines remained less explored as compared to other N-substituted imines.
Devalina Ray +3 more
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A Comparative Study of the Values of Ionization Constants for Acid Compounds Derived from N-formyl pipyidines [PDF]
مجلة التربية والعلم, 2012 The paper is concerned with the determination of pKa or pK′a values for a new fourteen imines by potentometric titration method. These imines are prepared from the mother compound the N- formyl pipyidines in a forms of oximes, phenolic Schiff bases ...
Adel Azzouz, Heba El Mawla
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Comparison of pKa values for some phenols imines derived from 3-acetyl and 4-acetyl pyridines. [PDF]
مجلة التربية والعلم, 2013 The study includes the preparation of a new six imines derived from the mother ketones, namely the 3-acetyl and 4-acetyl pyridines. These imines containing phenols groups in ortho, meta and para positions on aromatic amine side of the molecules.
Adel Azzouz, R Uezbaky
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Green Carbon, 2023 Photocatalytic oxidation coupling of amines represents a green and cost-effective method for the synthesis of highly value-added imines under visible light irradiation. However, the catalytic efficiency was severely limited by poor visible light response
Yanhua Gao +4 more
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Influence of percentages of ethanol alcohol on the acidity and basal of various imines derived from N-formylpipridine [PDF]
مجلة التربية والعلم, 2012 The project describes the influence of five different percentages of ethanol in a range between (10-50)% in a mixture of ethanol-water on the acidity of thirteen imines as derived from N-formyl-pipyridine. These five percentages of ethanol-water mixtures
Adel Azzouz, Heba El Mawla
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Molecules, 2022 Through-bond conjugation (TBC) and/or through-space conjugation (TSC) determine the photophysical properties of organic luminescent compounds. No systematic studies have been carried out to understand the transition from aromatic TBC to non-aromatic TSC ...
Peifeng Zhuang +6 more
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Mechanochemical Synthesis of Fluorinated Imines
Molecules, 2022 A number of imines, including 12 new compounds, previously not reported in the literature, derived from variously fluorinated benzaldehydes and different anilines or chiral benzylamines were synthesized by a solvent-free mechanochemical method, which was
Karolina Ciesielska +3 more
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Molecules, 2021 Although there exists a variety of different catalysts for hydroboration of organic substrates such as aldehydes, ketones, imines, nitriles etc., recent evidence suggests that tetra-coordinate borohydride species, formed by activation, redistribution, or
Mohammad M. Kamal +3 more
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Physical and Chemical Methods Used for Determination of Structures of Some Imines Derived from Different Carbonyl Compounds [PDF]
مجلة التربية والعلم, 2018 The project is concerned with the preparation of fifteen imines derived from 2-acetyl pyridine ,3 or 4 –hydroxy benzaldehyde and m-anisaldehyde with aromatic primary amines by standard method . These imines include namely ,hydroxylamine hydrochloride,o,m,
Adel S.P.Azzouz, D. B.T.Bakzo
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