Results 11 to 20 of about 2,987 (182)

Catalytic Enantioselective Fluorination of Oxindoles [PDF]

open access: yesJournal of the American Chemical Society, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
Mikiko Sodeoka
exaly   +3 more sources

tert-Butyl Hypochlorite: A Reagent for the Synthesis of Chlorinated Oxindole and Indole Derivatives [PDF]

open access: yesMolecules
tert-Butyl hypochlorite was employed as a versatile reagent for chlorooxidation of indoles, chlorination of 2-oxindoles, and decarboxylative chlorination of the indole-2-carboxylic acids.
Chun-Yan Liu   +4 more
doaj   +2 more sources

Preparation of spirocyclic oxindoles by cyclisation of an oxime to a nitrone and dipolar cycloaddition [PDF]

open access: yesBeilstein Journal of Organic Chemistry
Oxindoles are an important class of compounds with significant biological activities. Spirocyclic derivatives are present in a variety of natural products.
Beth L. Ritchie   +2 more
doaj   +2 more sources

Enantioselective de novo construction of 3‑oxindoles via organocatalyzed formal [3 + 2] annulation from simple arylamines [PDF]

open access: yesNature Communications
The de novo construction of enantioenriched 3-hydroxyindolenines and 3-oxindoles from easily available starting materials has been highly desired. Herein, an enantioselectively intermolecular direct [3 + 2] annulation of aryl amine with 2,3-diketoesters ...
Yong Wang   +6 more
doaj   +2 more sources

Re-design and evaluation of diclofenac-based carborane-substituted prodrugs and their anti-cancer potential [PDF]

open access: yesScientific Reports
In this study, we investigated a novel anti-cancer drug design approach by revisiting diclofenac-based carborane-substituted prodrugs. The redesigned compounds combine the robust carborane scaffold with the oxindole framework, resulting in four carborane-
Christoph Selg   +13 more
doaj   +2 more sources

Regioselective Synthesis of Spiro-Oxindoles via a Ruthenium-Catalyzed Metathesis Reaction

open access: yesChemistry Proceedings, 2023
Spiro-oxindoles are important heterocyclic motifs found in various alkaloids, many of which exhibit pharmacological properties. Due to the remarkable biological activity of spiro-oxindoles, significant effort has been made towards the synthesis of ...
Pradip Debnath
doaj   +1 more source

Synthesis of Carbonyl-Containing Oxindoles via Ni-Catalyzed Reductive Aryl-Acylation and Aryl-Esterification of Alkenes

open access: yesMolecules, 2022
Carbonyl-containing oxindoles are ubiquitous core structures present in many biologically active natural products and pharmaceutical molecules. Nickel-catalyzed reductive aryl-acylation of alkenes using aryl anhydrides or alkanoyl chlorides as acyl ...
Zhengtian Ding, Wangqing Kong
doaj   +1 more source

Synthesis of 2-oxindoles via visible-light photoredox catalysis

open access: yesNantong Daxue xuebao. Ziran kexue ban, 2022
To develop an effective synthetic method for the preparation of 2-oxindoles, using readily available N-aryl acrylamides and diethyl bromomalonate as starting materials, and visible light as green and sustainable energy source,the synthesis of various ...
WANG Pengfei; YI Wei; LIU Gongqing
doaj   +1 more source

Highly Efficient Synthesis of 3,3-Disubstituted Oxindoles through Direct Oxidative Alkylarylation of N-Arylacrylamides with Simple Alkanes

open access: yesSynOpen, 2023
A direct oxidative alkylarylation reaction of N-arylacrylamides with simple alkanes for the synthesis of 3,3-disubstituted oxindoles under metal-free conditions was demonstrated.
Yan Chen   +6 more
doaj   +1 more source

Anticancer Compounds Based on Isatin-Derivatives: Strategies to Ameliorate Selectivity and Efficiency

open access: yesFrontiers in Molecular Biosciences, 2021
In this review we compare and discuss results of compounds already reported as anticancer agents based on isatin-derivatives, metalated as well as non-metallated.
Raphael Enoque Ferraz de Paiva   +4 more
doaj   +1 more source

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