Iodine-catalyzed efficient synthesis of azaarene substituted 3-hydroxy-2-oxindole derivatives through sp3 C–H functionalization
作者:Srinivasu V.N. Vuppalapati、Yong Rok Lee
DOI:10.1016/j.tet.2012.07.051
日期:2012.9
Iodine-catalyzed benzylic sp3 C–H bond functionalization of lutidines or picolines to isatins is described. This synthetic method provides a rapid entry towards biologically interesting 3-azaarene substituted 3-hydroxy-2-oxindole derivatives.
3-(Pyridylmethyl)-3-hydroxy-2-oxindole derivatives were synthesized in high yields under mild, and catalyst-free conditions using polyethylene glycol (PEG-400) as a solvent. The use of low cost PEG-400 makes it simple, convenient, and environmentally benign. (c) 2013 Elsevier Ltd. All rights reserved.
Preparation of aryl-substituted 2-oxyindoles by superelectrophilic chemistry
作者:Rajasekhar Reddy Naredla、Erum K. Raja、Douglas A. Klumpp
DOI:10.1016/j.tetlet.2013.04.011
日期:2013.6
A series of pyridyl-substituted 3-hydroxy-2-oxyindoles have been prepared and reacted with arenes in superacid promoted Friedel-Crafts reactions. The product aryl-substituted 2-oxyindoles are formed in generally good yields. With substituted arenes such as toluene, bromobenzene, or ethyl salicylate, the Friedel-Crafts reactions occur with excellent regioselectivity. A mechanism is proposed involving dicationic, superelectrophilic species leading to the electrophilic aromatic substitution chemistry. (C) 2013 Elsevier Ltd. All rights reserved.
Antihypoxic action of dioxindole derivatives
作者:L. I. Mazhilis、V. N. Garalene、A. P. Stankyavichyus、S. P. Risyalis
DOI:10.1007/bf00767830
日期:1985.8
MAZHILIS, L. J.;GARALENE, V. N.;STANKYAVICHYUS, A. P.;RISYALIS, S. P., XIM.-FARMATS. ZH., 1985, 19, N 8, 960-964
作者:MAZHILIS, L. J.、GARALENE, V. N.、STANKYAVICHYUS, A. P.、RISYALIS, S. P.