Silica sulfuric acid: a reusable solid catalyst for one pot synthesis of densely substituted pyrrole-fused isocoumarins under solvent-free conditions

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ID: 31308
2013
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Abstract
A convenient and efficient methodology for the synthesis of densely substituted pyrrole-fused isocoumarins, which employs solid-supported silica sulfuric acid (SSA) as catalyst, has been developed. When the mixture of ninhydrin adducts of acetylacetone/ethyl acetoacetate and primary amines was heated on the solid surface of SSA under solvent-free conditions, the pyrrole-fused isocoumarins were formed in good yields. This synthetic method has several advantages such as the employment of solvent-free reaction conditions without the use of any toxic reagents and metal catalysts, the ease of product isolation, the use of a recyclable catalyst, the low cost, the easy availability of the starting materials, and the excellent yields of products.
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pathak2013silicabeilstein Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Pathak, Sudipta;Debnath, Kamalesh;Pramanik, Animesh;
Journal Beilstein journal of organic chemistry
Year 2013
DOI
DOI not found
URL
https://doi.org/10.3762/bjoc.9.269
Keywords Keywords not found

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