141210-72-2Relevant articles and documents
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.
LACTAM AND AMIDE ACETALS. 69. SYNTHESIS AND PROPERTIES OF 3-(AMINOMETHYLENE)-2-INDOLINONE DERIVATIVES
Golovko, T. V.,Solov'eva, N. P.,Bogdanova, G. A.,Sheinker, Yu. N.,Granik, V. G.
, p. 952 - 959 (2007/10/02)
Oxindole derivatives reacted with the diethyl acetals of dimethylformamide and dimethylacetamide to give the corresponding derivatives of 3-(aminomethylene)-, (aminoethylidene)-, and (ethoxyethylidene)-2-indolinone.These products were then easily converted to N-aryl- and N-alkylaminomethyleneoxindoles upon treatment with aryl or alkyl amines.The alkylation of N,N-dimethylaminomethylene-2-indolinones by dimethyl sulfate and triethyloxonium tetrafluoroborate, and the reactions of the resulting methyl sulfates and tetrafluoroborates with nucleophilic reagents were studied.The configuration of the 3-(aminomethylene)-2-indolinone derivatives prepared at the enamine C=C double bond was investigated by NMR.The free energies of activation for the cis-trans isomerization were determined in a number of cases.
β,β-Diacyl-enamines and -enoles, 6: An Efficient Synthesis of Aminoalkylidene Derivatives Fivemembered Active Methylene Compounds
Wolfbeis, Otto S.
, p. 369 - 384 (2007/10/02)
Trimethyl orthoacetate, orthopropionate or orthobenzoate in contrast to orthoformiate do not undergo a three component condensation with anilines and cyclic sixmembered active methylene compounds to the corresponding N-substituted aminomethylene derivativ
