Results 1 to 10 of about 34,049 (283)

Asymmetric Reactions of N-Phosphonyl/Phosphoryl Imines

open access: yesMolecules, 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
doaj   +1 more source

Determination of some imines structures derived from salicylaldehyde with phenylene diamines by physical methods [PDF]

open access: yesKirkuk 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
doaj   +1 more source

Electronic interaction and oxygen vacancy engineering of g-C3N4/α-Bi2O3 Z-scheme heterojunction for enhanced photocatalytic aerobic oxidative homo-/hetero-coupling of amines to imines in aqueous phase

open access: yesGreen 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
doaj   +1 more source

Effects of Through-Bond and Through-Space Conjugations on the Photoluminescence of Small Aromatic and Aliphatic Aldimines

open access: yesMolecules, 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
doaj   +1 more source

Mechanochemical Synthesis of Fluorinated Imines

open access: yesMolecules, 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
doaj   +1 more source

Imine Reduction with Me2S-BH3

open access: yesMolecules, 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
doaj   +1 more source

Grignard Reagent-Catalyzed Hydroboration of Esters, Nitriles, and Imines

open access: yesMolecules, 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
doaj   +1 more source

Tautomerism of para-Aminobenzylidene-para-methoxyaniline

open access: yesIJCER (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
doaj   +1 more source

Imine- and Amine-Type Macrocycles Derived from Chiral Diamines and Aromatic Dialdehydes

open access: yesMolecules, 2022
The condensation of aromatic dialdehydes with chiral diamines, such as 1,2-trans-diaminocyclohexane, leads to various enantiopure or meso-type macrocyclic Schiff bases, including [2 + 2], [3 + 3], [4 + 4], [6 + 6] and [8 + 8] condensation products ...
Jerzy Lisowski
doaj   +1 more source

An Innovative Structural Rearrangement in Imine Palladacycle Metaloligand Chemistry: From Single-Nuclear to Double-Nuclear Pseudo-Pentacoordinated Complexes

open access: yesMolecules, 2023
Treatment of the double nuclear complex 1a, di-μ-cloro-bis[N-(4-formylbenzylidene)cyclohexylaminato-C6, N]dipalladium, with Ph2PCH2CH2)2PPh (triphos) and NH4PF6 gave the single nuclear species 2a, 1-N-(cyclohexylamine)-4-N-(formyl)palladium(triphos ...
Basma al Janabi   +4 more
doaj   +1 more source

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