Efficient One-Pot Synthesis of Spirooxindole Derivatives Catalyzed by <scp>l</scp>-Proline in Aqueous Medium
作者:Yuling Li、Hui Chen、Chunling Shi、Daqing Shi、Shunjun Ji
DOI:10.1021/cc9001185
日期:2010.3.8
An efficient one-potsynthesis of spirooxindole derivatives by three-component reaction of isatins, malononitrile (cyanoacetic ester) and 1,3-dicarbonyl compounds in water in the presence of l-proline is reported. This new protocol has the advantages of environmental friendliness, higher yields, shorter reaction times, low cost, and convenient operation.
Microwave-assisted Aqueous Multicomponent Reaction: Facile Synthesis of Polyfunctionalized Indoline-spiro Fused Pyran Derivatives
作者:Qiong Wu、Hui Feng、Dong-Dong Guo、Mian-Shuai Yi、Xing-Han Wang、Bo Jiang、Shu-Jiang Tu
DOI:10.1002/jhet.1537
日期:2013.5
efficient method for the synthesis of polyfunctionalized indoline‐spiro fusedpyranderivatives has been established. This reaction was conducted by reacting readily available and inexpensive starting materials, such as isatins, cyclic‐1,3‐dicarbonyl compounds, and malononitrile in aqueous media without any catalysts under microwave irradiation. The present green synthesis shows fascinating properties