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Synthesis 2010(3): 437-442
DOI: 10.1055/s-0029-1218595
DOI: 10.1055/s-0029-1218595
PAPER
© Georg Thieme Verlag
Stuttgart ˙ New YorkSulfonic Acid Functionalized Silica: A Mild, Reusable and Efficient Heterogeneous Catalyst for the Highly Diastereoselective Synthesis of cis-Isoquinolonic Acids
Weitere Informationen
Received
21 September 2009
Publikationsdatum:
07. Dezember 2009 (online)
Publikationsverlauf
Publikationsdatum:
07. Dezember 2009 (online)

Abstract
Sulfonic acid functionalized silica (SAFS) is found to be a recyclable heterogeneous catalyst for the rapid and efficient synthesis of various cis-isoquinolonic acids from the three-component condensation reaction of homophthalic anhydride, an amine, and an aldehyde. This reaction was highly diastereoselective and only one diastereomer was obtained in all cases.
Key words
sulfonic acid functionalized silica - cis-isoquinolonic acids - diastereoselective synthesis - three-component reaction
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