Title of article
Carbon–SO3H: a novel and recyclable solid acid catalyst for the synthesis of spiro[4H-pyran-3,3′-oxindoles]
Author/Authors
Maheshwar Rao، نويسنده , , B. and Reddy، نويسنده , , G. Niranjan and Reddy، نويسنده , , T. Vijaikumar and Devi، نويسنده , , B.L.A. Prabhavathi and Prasad، نويسنده , , R.B.N. and Yadav، نويسنده , , J.S. and Reddy، نويسنده , , B.V. Subba، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2013
Pages
6
From page
2466
To page
2471
Abstract
A bioglycerol derived carbon-sulfonic acid is found to catalyze efficiently the three-component one-pot condensation of isatin, malononitrile, and 1,3-dicarbonyls to afford a wide range of spiro[4H-pyran-3,3′-oxindole]derivatives in good yields and selectivity. The use of a recyclable solid acid catalyst makes this method simple, convenient, and cost-effective.
Keywords
Domino reaction , Solid acid catalysis , 1 , 3-dicarbonyls , Malononitrile , Isatins , Spirooxindoles
Journal title
Tetrahedron Letters
Serial Year
2013
Journal title
Tetrahedron Letters
Record number
1884392
Link To Document