Results 31 to 40 of about 26,755 (292)
No Transition Metals Required – Oxygen Promoted Synthesis of Imines from Primary Alcohols and Amines under Ambient Conditions [PDF]
, 2022 The synthesis of imines denotes a cornerstone in organic chemistry. The use of alcohols as renewable substituents for carbonyl-functionality represents an attractive opportunity. Consequently, carbonyl moieties can be in situ generated from alcohols upon
Karl, Kirchner +9 more
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Imine- and Amine-Type Macrocycles Derived from Chiral Diamines and Aromatic Dialdehydes
Molecules, 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
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Unprecedented selective synthesis of imines by photo-oxidative coupling under N2O atmosphere [PDF]
, 2023 The synthesis of imines was unprecedently performed using nitrous oxide (N2O) as a highly selective oxidative agent for the photocatalytic homo-coupling of amines. In a similar way, unsymmetrical imines were produced through cross-coupling of amines with
Oriane, DELAUNAY +2 more
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Molecules, 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
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Four Thermochromic o-Hydroxy Schiff Bases of α-Aminodiphenylmethane: Solution and Solid State Study
Crystals, 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
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Trifluoroethanol Promoted Castagnoli–Cushman Cycloadditions of Imines with Homophthalic Anhydride
Molecules, 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
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Palladium-Catalyzed Double-Isocyanide Insertion via Oxidative N–O Cleavage of Acetyl Oximes: Syntheses of 2H‑Pyrrol-2-imines [PDF]
, 2017 The palladium-catalyzed reaction of acetyl oximes with isocyanides was developed for the synthesis of 2H-pyrrol-2-imines. The key steps were (i) generation of an enamido-palladium(II) species, (ii) migratory double-isocyanide insertion, and (iii ...
Jeh-Jeng Wang (1633303) +3 more
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Molecules, 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
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Imine-Enamine Tautomerism -Nucleophilic Reactions of Imines [PDF]
Zeitschrift 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
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Molecules, 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
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