2058-71-1Relevant academic research and scientific papers
Effect of a =X-NH-Fragment, (X = C, N), on Z/E Isomerization and ON/OFF Functionality of Isatin Arylhydrazones, ((Arylamino)Methylene)Indolin-2-Ones and Their Anions
?andrik, Róbert,Csicsai, Klaudia,Donovalová, Jana,Gáplovsky, Anton,Sokolík, Róbert,Tisovsky, Pavol
, (2020/07/25)
The subject of this work was the study of thermally and photochemically stimulated Z ? E isomerization and hydrazo ? azo tautomerism of Z- and E-isomers of isatin arylhydrazones and ((arylamino)methylene)indolin-2-ones and their anions. Using NMR, UV-Vis spectroscopy, kinetic measurements, and HPLC, we studied the relationship of structure, (Z- and E-isomers), of these compounds and hydrazo=azo tautomerism. The ON/OFF functionality of these compounds and their anions using light to stimulate switching between ON and OFF states was investigated. We pointed out the characterization of the effect of =N- and =CH- structural fragments and aryl structure on ON and OFF states of isatin arylhydrazones and ((arylamino)methylene)indolin-2-ones.
Catalyst free, multicomponent-tandem synthesis of spirooxindole-indazolones and spirooxindole-pyrazolines: A glycerol mediated green approach
Singh, Swastika,Saquib, Mohammad,Singh, Shyam Babu,Singh, Mandavi,Singh, Jagdamba
, p. 45152 - 45157 (2015/06/02)
The development of a versatile new one pot, catalyst free, multicomponent-tandem strategy for assembly of spirooxindole-indazolones and spirooxindole-pyrazolines is described. The reported protocol includes several advantages like environmental friendliness, cost effectiveness, high atom economy, short reaction times and high yields. The reported method is the first green synthesis of spirooxindole-indazolones and spirooxindole-pyrazolines. This journal is
Investigation of reactions between binucleophilic reagents with 2-(2-Oxindolin-3-ylidene)malononitrile derivatives
Seifi, Mohammad,Sheibani, Hassan
, p. 478 - 481 (2013/08/23)
Nucleophilic addition of hydrazines and thiosemicarbazide to the 2-(2-oxoindolin-3-ylidene) malononitrile derivatives 1, followed by elimination of malononitrile, lead to 3-(2-Arylhydrazono)indolin-2-ones and 1-(2-oxoindolin-3- ylidene)thiosemicarbzides r
Synthesis and antibacterial screening of hydrazones, Schiff and Mannich bases of isatin derivatives
Sridhar, Seshaiah Krishnan,Saravanan, Muniyandy,Ramesh, Atmakuru
, p. 615 - 625 (2007/10/03)
Schiff bases and hydrazones of substituted isatins (1-28) were prepared by reacting isatin and aromatic primary amines/hydrazines. A new series of the corresponding N-Mannich base (29-35) was synthesised by reacting them with formaldehyde and diphenyl ami
Hydrazone derivatives and their use
-
, (2008/06/13)
A method of antagonizing the biological effects of an excitatory amino acid of a subject in need of such antagonization, comprising the step of administering to said subject an effective excitatory amino acid antagonizing amount of an indole-2,3-dione-3-h
