Results 1 to 10 of about 16,503 (251)

Ueber das Isatin [PDF]

open access: greenBerichte der deutschen chemischen Gesellschaft, 1882
n ...
Adolf Baeyer, Spir. Oekonomides
openalex   +5 more sources

Enantioselective Solvent-Free Synthesis of 3-Alkyl-3-hydroxy-2-oxoindoles Catalyzed by Binam-Prolinamides [PDF]

open access: yesMolecules, 2015
BINAM-prolinamides are very efficient catalyst for the synthesis of non-protected and N-benzyl isatin derivatives by using an aldol reaction between ketones and isatins under solvent-free conditions.
Abraham Bañn-Caballero   +3 more
doaj   +5 more sources

Ueber Condensationsproducte des Isatins [PDF]

open access: greenBerichte der deutschen chemischen Gesellschaft, 1885
n ...
Adolf Baeyer, M. J. Lazarus
openalex   +4 more sources

Simple and Efficient Microwave Assisted N-Alkylation of Isatin [PDF]

open access: goldMolecules, 2008
We present herein the results of microwave promoted N-alkylations of isatin (1)with different alkyl, benzyl and functionalized alkyl halides. Reactions were carried outunder different conditions, always employing methodologies compatible with MW ...
María Mercedes Blanco   +4 more
doaj   +2 more sources

Spectroscopic studies on Isatin-3-Semicarbazone and Isatin-3-Thiosemicarbazone

open access: hybridGlobal Journal of Pure and Applied Sciences, 2004
The configurations of semi-and thiosemicarbazone derivatives of isatin are assigned by means of 1H and 13C NMR Spectroscopy including NOE difference spectra, IR and electronic spectral data of these compounds are also reported and discussed. The electron impact (EI), fast atom bombardment (FAB) and negative ion chemical ionization (NICI) mass spectra ...
Narayan T. Akinchan
openalex   +5 more sources

A green synthesis of isatoic anhydrides from isatins with urea-hydrogen peroxide complex and ultrasound [PDF]

open access: green, 2007
The oxidation of isatins at room temperature, using the cheap and environmentally friendly urea-hydrogen peroxide complex and ultrasonic irradiation, has been investigated. The ultrasonic irradiation dramatically reduces the reaction time.
Deligeorgiev, Todor   +3 more
core   +4 more sources

Tryptophan Metabolites as Mediators of Microbiota-Gut-Brain Communication: Focus on Isatin

open access: yesFrontiers in Behavioral Neuroscience, 2022
Isatin (indole-2,3-dione) is an endogenous regulator, exhibiting various behavioral, biological, and pharmacological activities. Synthesis of isatin includes several crucial stages: cleavage of the tryptophan side chain and subsequent oxidation of the ...
Alexei Medvedev, Olga Buneeva
doaj   +1 more source

Bis-Schiff Bases of Isatin Derivatives Synthesis, and their Biological Activities: A Review

open access: yesAl-Mustansiriyah Journal of Pharmaceutical Sciences, 2022
Isatin is a heterocyclic molecule that belongs to one of the most important classes of organic compounds known as indolines. Isatin, isatin analogs, and their Schiff bases have recently attracted a lot of attention in medicinal chemistry. Isatin, itself,
May Mohammed Jawad Al-Mudhafar   +2 more
doaj   +1 more source

The impact of isatin derivatives on antibiotic production by Streptomyces hygroscopicus CH-7 [PDF]

open access: yesHemijska Industrija, 2016
The effect of isatin derivatives as a nitrogen source on antibiotic (Hexaene H-85 and Azalomycine B) production by Streptomyces hygroscopicus CH-7 was studied.
Ćirić Jovan T.   +5 more
doaj   +1 more source

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