Results 21 to 30 of about 1,650 (181)

Silver-Catalyzed Decarboxylative Acylation of Isocyanides Accesses to α-Ketoamides with Air as a Sole Oxidant

open access: yesMolecules, 2023
α-Ketoamide moieties, as privileged units, may represent a valuable option to develop compounds with favorable biological activities, such as low toxicity, promising PK and drug-like properties.
Jia Xu   +6 more
doaj   +1 more source

Amide-Stabilized Enols in the Enol-Ugi Reaction: A Five-Component Synthesis of Triamides

open access: yesChemistry Proceedings, 2021
In continuation with our research in the use of enols in multicomponent reactions with isocyanides (IMCR), for the first time we have used amide-stabilized enols as the acid component in enol-Ugi reactions.
Ana G. Neo   +3 more
doaj   +1 more source

Light‐Controlled Modulation of 15‐Lipoxygenase‐1 Regulates Intestinal Inflammatory Signaling

open access: yesAngewandte Chemie, EarlyView.
The developed target‐guided strategy enables the rational design of diazo‐based photoswitchable inhibitors of 15‐lipoxygenase‐1. Distinct molecular architectures program opposite light‐dependent activity, allowing on‐demand control of enzyme inhibition.
Anastasia Louka   +10 more
wiley   +2 more sources

An NHC‐Coordinated Silicon/Sulfur Analogue of an Acyl Carbene

open access: yesAngewandte Chemie, EarlyView.
An NHC complex of an Si/S analogue of an acyl carbene is synthesized by the reaction of a disilyne with a cyclic thiourea. The observed Si2S three‐membered ring with unsymmetrical Si─S distances and a Si─Si single bond is consistent with intramolecular coordination of the silathioacyl sulfur to the silylene center.
Takuto Toyooka   +2 more
wiley   +2 more sources

On the reaction of diphenylketene with isocyanides

open access: yesOrganic & Biomolecular Chemistry, 2005
The products obtained from the reaction of diphenylketene with a variety of isocyanides are shown to depend heavily on the concentration of diphenylketene; a high concentration results in the precedented dioxolane derivatives, at much lower concentrations the reactions follow an alternative course and polycyclic beta-lactams are generated by a cascade ...
Robertson, J, Bell, S, Krivokapic, A
openaire   +3 more sources

Xanthate Based Radical Cascade Toward Multicomponent Formation of Pyrrolopyrimidines

open access: yesMolecules, 2011
A short sequential synthesis of pyrrolidino- pyridines and pyrimidines illustrates the potential of combining Ugi-Smiles couplings with radical tin-free processes.
Patil Pravin   +2 more
doaj   +1 more source

Selectivity in multiple multicomponent reactions: types and synthetic applications

open access: yesBeilstein Journal of Organic Chemistry, 2019
Multiple multicomponent reactions reach an unparalleled level of connectivity, leading to highly complex adducts. Usually, only one type of transformation involving the same set of reactants takes place.
Ouldouz Ghashghaei   +2 more
doaj   +1 more source

The Isocyanide Complexes cis-[MCl2(CNC6H4-4-X)2] (M = Pd, Pt; X = Cl, Br) as Tectons in Crystal Engineering Involving Halogen Bonds

open access: yesCrystals, 2021
The isocyanide complexes cis-[MCl2(CNC6H4-4-X)2] (M = Pd; X = Cl, Br; M = Pt; X = Br) form isomorphous crystal structures exhibiting the Cl/Br and Pd/Pt exchanges featuring 1D chains upon crystallisation.
Maria V. Kashina   +2 more
doaj   +1 more source

Exploiting the Nucleophilicity of the Nitrogen Atom of Imidazoles: One-Pot Three-Component Synthesis of Imidazo-Pyrazines

open access: yesMolecules, 2019
A novel one-pot multicomponent reaction to synthesize substituted imidazopyrazines is described. In brief, 1H-(imidazol-5-yl)-N-substituted methanamines react with aldehydes and isocyanides in methanol at room temperature to give imidazopyrazine ...
Ubaldina Galli   +7 more
doaj   +1 more source

Urea Synthesis from Isocyanides and O-Benzoyl Hydroxylamines Catalyzed by a Copper Salt

open access: yesMolecules, 2022
In the presence of CuOAc, a series of unsymmetric ureas can be generated in moderate to good yields under mild reaction conditions (10 mol% of CuOAc, 2 equiv t-BuONa or PhONa, 30 °C), using aryl isocyanides and O-benzoyl hydroxylamines as the readily ...
Ning Yu   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy