Results 21 to 30 of about 14,359 (248)

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

Trifluoroethanol Promoted Castagnoli–Cushman Cycloadditions of Imines with Homophthalic Anhydride

open access: yesMolecules, 2022
Lactams are essential compounds in medicinal chemistry and key intermediates in the synthesis of natural products. The Castagnoli–Cushman reaction (CCR) of homophthalic anhydride with imines is an exciting method for accessing cyclic densely substituted ...
Thibault Bayles, Catherine Guillou
doaj   +1 more source

Four Thermochromic o-Hydroxy Schiff Bases of α-Aminodiphenylmethane: Solution and Solid State Study

open access: yesCrystals, 2017
More than a hundred years after the first studies of the photo- and thermochromism of o-hydroxy Schiff bases (imines), it is still an intriguing topic that fascinates several research groups around the world. The reasons for such behavior are still under
Marija Zbačnik   +4 more
doaj   +1 more source

Imine Palladacycles: Synthesis, Structural Analysis and Application in Suzuki–Miyaura Cross Coupling in Semi-Aqueous Media

open access: yesMolecules, 2022
Treatment of the imines a–c with palladium(II) acetate in acetic acid yielded the μ-acetate dinuclear complexes 1a–c, which readily reacted with sodium chloride or bromide to provide μ-halide analogues.
Brais Bermúdez-Puente   +5 more
doaj   +1 more source

Regioselective Mercury(I)/Palladium(II)-Catalyzed Single-Step Approach for the Synthesis of Imines and 2-Substituted Indoles

open access: yesMolecules, 2021
An efficient synthesis of ketimines was achieved through a regioselective Hg(I)-catalyzed hydroamination of terminal acetylenes in the presence of anilines.
Rsuini U. Gutiérrez   +4 more
doaj   +1 more source

Solvent-free synthesis of azomethines, spectral correlations and antimicrobial activities of some E-benzylidene-4-chlorobenzenamines

open access: yesBulletin of the Chemical Society of Ethiopia, 2015
Some azomethines including substituted benzylidene-4-chlorobenzenamines (E-imines) have been synthesized by fly-ash: PTS catalyzed microwave assisted condensation of 4-chloroaniline and substituted benzaldehydes under solvent-free conditions.
R. Suresh   +13 more
doaj   +1 more source

Imine-Enamine Tautomerism -Nucleophilic Reactions of Imines [PDF]

open access: yesZeitschrift für Naturforschung B, 1982
Abstract A reinvestigation of the reactivity of N-isopropylidene cyclohexylamine to methyl acrylate by GC-MS analysis has shown that the major product is the β-aminoester (9) formed by the N-alkylation of cyclohexylamine which may be generated by a dimerisation-elimination sequence.
Atta-ur Rahman   +4 more
openaire   +1 more source

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