Effect of Structure of 1-Substituted Isatins on Direction of Their Reactions with Some Acetohydrazide Ammonium Derivatives
作者:A. V. Bogdanov、A. D. Voloshina、A. S. Sapunova、N. V. Kulik、V. F. Mironov
DOI:10.1134/s1070363220090029
日期:2020.9
Abstract The reaction of 1-acylisatins with Girard’s reagent T proceeds with elimination of the acyl substituent and the formation of isatin-3-hydrazone with a quaternary nitrogen atom in the side chain. Depending on the structure of the substituent in position 1, 1-(aminomethyl)isatins reacted with the Girard’s reagent T to form hydrazones either with the elimination of the aminomethyl substituent
New N-Mannich bases obtained from isatin and piperazine derivatives: the synthesis and evaluation of antimicrobial activity
作者:Andrei V. Bogdanov、Al’bina M. Vazykhova、Nadezhda R. Khasiyatullina、Dmitry B. Krivolapov、Alexey B. Dobrynin、Alexandra D. Voloshina、Vladimir F. Mironov
DOI:10.1007/s10593-016-1826-6
日期:2016.1
A Mannich reaction of isatin with monosubstituted piperazines in the presence of aqueous formaldehyde was used to synthesize new, as well as two previously described derivatives of 1-piperazinomethylisatins, which were further converted to isoindigo derivatives. The antimicrobial activity of the obtained heterocycles was evaluated.
Novel 1-Aminomethylisatins: Peculiarities of the Synthesis and the Reaction with Tris(diethylamino)phosphine
作者:Andrei V. Bogdanov、Lenar I. Musin、Anton V. Il'in、Vladimir F. Mironov
DOI:10.1002/jhet.2011
日期:2014.7
The Mannich reaction of isatin with different primary and secondary amines and effect of the substituent in aromatic amines on the reaction pathway is studied. The efficient high‐yield synthesis of novel isoindigo derivatives by the mild deoxygenation reaction of the corresponding isatins with tris(diethylamino)phosphine is described.