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Synthesis 2006(3): 451-454
DOI: 10.1055/s-2005-918519
DOI: 10.1055/s-2005-918519
PAPER
© Georg Thieme Verlag Stuttgart · New York
Iodoxybenzoic Acid (IBX): An Efficient and Novel Oxidizing Agent for the Aromatization of 1,4-Dihydropyridines [1]
Further Information
Received
7 July 2005
Publication Date:
21 December 2005 (online)
Publication History
Publication Date:
21 December 2005 (online)
Abstract
Hantzsch 1,4-dihydropyridines undergo smooth aromatization catalyzed by iodoxybenzoic acid (IBX) to afford the corresponding pyridine derivatives in high yields. All the reactions were carried out in DMSO solvent at 80-85 °C for a period of two to four hours to complete conversion of the substrates.
Keywords
hypervalent iodine reagents - dihydropyridines - aromatization - DMSO - pyridine derivatives
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IICT Communication No. 041107.