Journal
ORGANIC & BIOMOLECULAR CHEMISTRY
Volume 9, Issue 7, Pages 2314-2318Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0ob00965b
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- CSIR, New Delhi
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A biomaterial supported organocatalyst, readily synthesized by the reaction of chemically modified sulfonic group containing expanded corn starch with pyridine exhibited excellent catalytic activity for the synthesis of beta-amino carbonyls in excellent yields via aza-Michael addition of amines to electron deficient alkenes. A remarkable enhancement in the reaction rates was observed with the prepared bifunctional organocatalyst in comparison to the either starch grafted sulfonic acid or the corresponding homogeneous pyridinium p-toluenesulfonate.
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