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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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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Cobalt Catalyzed Enantioselective Reductive Coupling of Imines and Internal Alkynes [PDF]
, 2023 Chiral allylic amines hold significant importance as structural components in natural products, pharmaceuticals, and chiral catalysts. In this study, we have delved into cobalt-catalyzed enantioselective reductive coupling of imines with internal alkynes.
Biplab, Maji +2 more
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Experimental and Theoretical Studies on the Reactions of Aliphatic Imines with Isocyanates [PDF]
, 2023 In the context of a project aiming at the replacement of the 3-substituted β-lactam ring in classical β-lactam antibiotics by an N(3)-acyl-1,3-diazetidinone moiety, we have investigated the reaction of isocyanates with imines derived from allyl glycinate
Sereina, Riniker +3 more
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Tf2O‑Mediated Cyclization of α‑Acyl-β-(2-aminopyridinyl)acrylamides: Access to N‑Substituted 4H‑Pyrido[1,2‑a]pyrimidin-4-imines [PDF]
, 2020 A facile and efficient direct synthesis of N-substituted 4H-pyrido[1,2-a]pyrimidin-4-imines is developed from α-acyl-β-(2-aminopyridinyl)acrylamides mediated by triflic anhydride (Tf2O) in the presence of 2-chloropyridine.
Ning Zhang (23771) +7 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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Preparation of 3‑Aryl-2-aminoindoles via Rhodium-Catalyzed Coupling Reaction between 2‑Arylpyridines and 3‑Diazoindolin-2-imines [PDF]
, 2016 Rhodium-catalyzed coupling reaction of 3-diazoindolin-2-imines with 2-arylpyridines, 2-phenylpyrimidines, or 1-phenylpyrazoles furnished the corresponding 3-aryl-2-aminoindoles in moderate to excellent yields.
Yanguang Wang (1412947) +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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Grignard Reagent-Catalyzed Hydroboration of Esters, Nitriles, and Imines
Molecules, 2023 The reduction in esters, nitriles, and imines requires harsh conditions (highly reactive reagents, high temperatures, and pressures) or complex metal-ligand catalytic systems. Catalysts comprising earth-abundant and less toxic elements are desirable from
Hyun Ji Han +7 more
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Tautomerism of para-Aminobenzylidene-para-methoxyaniline
IJCER (International Journal of Chemistry Education Research), 2020 : In the early seventies received wide attention when Patai [1] published his book tagged the chemistry of the azomethane group and the aforementioned group is very important in the fields of chemistry, life sciences, chemical and pharmaceutical ...
Asmaa Baker Aldabbagh
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