Journal
TETRAHEDRON LETTERS
Volume 52, Issue 21, Pages 2664-2666Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2011.03.067
Keywords
Pyrazolopyridine-spiroindolinone; Isatin; 5-Aminopyrazoles; Cyclic beta-diketones
Categories
Funding
- COLCIENCIAS
- Universidad del Atlantico
- Universidad del Valle
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Novel pyrazolopyridine-spiroindolinones were prepared by the three-component reaction of 5-aminopyrazoles, isatin, and cyclic beta-diketones in aqueous media and catalyzed by p-TSA. This protocol provides a simple one-step procedure with the advantages of easy work-up, mild reaction conditions and environmentally benign. (C) 2011 Elsevier Ltd. All rights reserved.
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