A green reaction of isatins, active cyanomethanes, and cyclic 1,3-dicarbonyl derivatives for the efficient and simple one-potthree-componentsynthesis of spirooxindole fused heterocycles in refluxing water by use of magnetically recoverable and reusable catalyst is reported. The features of this procedure are, the use of magnetically recoverable and reusable catalyst, mild reaction conditions, high
Simple and Efficient Method for Three-Component Synthesis of Spirooxindoles in Aqueous and Solvent-Free Media
作者:Akbar Mobinikhaledi、Naser Foroughifar、Mohammad Ali Bodaghi Fard
DOI:10.1080/00397911003587507
日期:2011.1.25
A clean, simple, one-pot, three-component synthesis of some important spirooxindole derivatives in the presence of tetrabutylammonium bromide (TBAB) was carried out under green and environmentally benign conditions.
An efficient, three-component synthesis of spiro[benzo[<i>g</i>]chromene-4,3â²-indoline]-3-carbonitrile and spiro[indoline-3,5â²-pyrano[2,3-<i>d</i>]pyrimidine]-6â²-carbonitrile derivatives
Abstractmagnified image Spiro[benzo[g]chromene‐4,3′‐indoline]‐3‐carbonitriles and spiro[indoline‐3,5′‐pyrano[2,3‐d]pyrimidine]‐6′‐carbonitriles were synthesized via a three‐component reaction of isatins, 2‐hydroxynaphthalene‐1,4‐dione or 2‐methylpyrimidine‐4,6‐diol, and malononitrile in aqueous media. J. Heterocyclic Chem., (2009).