Results 51 to 60 of about 23,803 (294)

Synthesis, Characterization and Biological Activities of a New 5-Chloroisatin Schiff Base and its Metal Complexes [PDF]

open access: yes, 2013
Copper(II), cobalt(II), nickel(II) and zinc(II) complexes of 5-chloroisatin Schiff base (L) (L= Schiff base derived from 5-chloroisatin and 2-methyl-4- nitro aniline) were synthesized and characterized.
Mahendra, K.N.   +2 more
core   +1 more source

Solvatochromism of isatin based Schiff bases: An LSER and LFER study [PDF]

open access: yesJournal of the Serbian Chemical Society, 2016
The derivatives of isatin have already been reported to show a variety of biological activities. However, there has been no report on solvatochromic effect of isatin derivatives so far, and that could be of interest to study and relate to their ...
Brkić Dominik R.   +6 more
doaj   +1 more source

Electrochemical Cell Designs for Efficient Carbon Dioxide Reduction and Water Electrolysis: Status and Perspectives

open access: yesAdvanced Materials, EarlyView.
This review discusses recent innovations in electrochemical CO2 reduction reactions (eCO2RR) and hydrogen evolution reaction cell designs. The latest advancements in in situ cells for operando characterization are also presented. Optimizations in flow patterns, membrane electrode assemblies, electrolyte engineering, and counter‐anodic reactions provide
Zhangsen Chen   +3 more
wiley   +1 more source

Ion‐Pair Hydrogen Atom Transfer Catalysis Enables Cr‐Catalyzed Allylation of Ketones Using Hydrocarbon Alkenes

open access: yesAngewandte Chemie, Volume 137, Issue 21, May 19, 2025.
We developed the allylation of ketones using simple alkenes promoted by a chromocene catalyst and an ion‐pair hydrogen atom transfer (IP‐HAT) catalyst. This catalytic system can be applied to a wide range of ketones, including aliphatic ketones. The reaction proceeds under mild conditions with high functional group tolerance.
Suguru Arii   +4 more
wiley   +2 more sources

SYNTHESIS, X-RAY AND ANTIMICROBIAL ACTIVITY OF ISATIN-3-PHENYLHYDRAZONE [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly, 2008
Isatin-3-phenylhydrazone was synthesized and X-ray crystal structure of this compound has been solved. Its structure was also established using FTIR, UV/Vis and 1H-NMR spectroscopic method.
SANDRA S. KONSTANTINOVIĆ   +3 more
doaj  

1-Tetradecylindoline-2,3-dione

open access: yesActa Crystallographica Section E, 2010
In the title N-alkyl isatin, C22H33NO2, the isatin moiety is planar (r.m.s. deviation = 0.03 Å). The tetradecyl substituent has all torsion angles in an antiperiplanar conformation.
Khalil Mamari   +3 more
doaj   +1 more source

Thermoelectric Properties of a Family of Benzodifuranone‐Based Conjugated Copolymers in Oriented Thin Films Doped Sequentially With NDMBI‐H

open access: yesAdvanced Electronic Materials, EarlyView.
Combining high polymer orientation of n‐type copolymers by temperature rubbing and sequential doping with N‐DMBI results in a strong improvement of electrical conductivity and thermoelectric power factors reaching up to 9.8 ± 1.6 S cm−1 and 8 ± 3 µW m−1.K2, respectively.
Shubhradip Guchait   +7 more
wiley   +1 more source

Effect of pH on ciprofloxacin ozonation in hospital WWTP effluent [PDF]

open access: yes, 2009
A bubble column was used for ozonation of the quinolone antibiotic ciprofloxacin and the effect of pH was tested. Degradation at pH 7 increased the ciprofloxacin half life time to 29.1 min compared to pH 3 (26.8 min) and pH 10 (18.7 min), possibly due to
De Wispelaere, Patrick   +4 more
core  

Hybrid-Type Squaramide-Fused Amino Alcohol Organocatalysts for Enantioselective Nitro-Aldol Reaction of Nitromethane with Isatins [PDF]

open access: yes, 2017
A series of new hybrid type squaramide-fused amino alcohol (SFAA) catalysts were synthesized and their catalytic efficiency in enantioselective nitro-aldol reaction of various isatins with nitromethane that afford the chiral 3-substituted 3 ...
CHENNAPURAM Madhu   +8 more
core   +2 more sources

Chlorination of isatins with trichloroisocyanuric acid [PDF]

open access: yesJournal of the Brazilian Chemical Society, 2011
Isatin and its derivatives have been extensively reported in the literature as having range of potential pharmacological compounds. The Sandmeyer method is the most widely used for isatin synthesis and furnishes different substituted isatins, usually with high yields.
Silva, Bárbara V   +2 more
openaire   +4 more sources

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