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l-Proline catalyzed condensation of salicylaldehydes with ethyl nitroacetate: an efficient access to 3-nitrocoumarins

l -Proline catalyzed condensation of salicylaldehydes and ethyl nitroacetate afforded 3-nitrocoumarins in good to high yields under mild conditions. This organocatalyzed process offers a much improved yield of 3-nitrocoumarins and well tolerates both electron-donating and electron-withdrawing substi...

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Bibliographic Details
Published in:Monatshefte für Chemie 2016-12, Vol.147 (12), p.2157-2161
Main Authors: Sharma, Rajesh Kumar, Priyanka, Katiyar, Diksha
Format: Article
Language:English
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Summary:l -Proline catalyzed condensation of salicylaldehydes and ethyl nitroacetate afforded 3-nitrocoumarins in good to high yields under mild conditions. This organocatalyzed process offers a much improved yield of 3-nitrocoumarins and well tolerates both electron-donating and electron-withdrawing substituents on the phenyl ring. Graphical abstract
ISSN:0026-9247
1434-4475
DOI:10.1007/s00706-016-1736-4