Synthesis of Trisubstituted-4H-Pyrans via Unexpected Cycloaddition of Aldehydes with Acetylenic Ketones Mediated by DMAP and 2,4- Pentanedione

Author(s): Bin Hu, Qing-Fa Zhou, Kai Tang, Song Xue.

Journal Name: Letters in Organic Chemistry

Volume 6 , Issue 7 , 2009

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A cycloaddition of aldehydes and acetylenic ketones mediated by 4-dimethylaminopyridine and 2,4- pentanedione is reported. The method supplies a facile way to synthesize 3,4,5-trisubstituted-4H-pyrans in moderate to good yields under mild conditions.

Keywords: Cycloaddition, acetylenic ketones, aldehydes, 4H-pyran, DMAP, 2,4-pentanedione

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Article Details

Year: 2009
Page: [560 - 563]
Pages: 4
DOI: 10.2174/157017809789869438
Price: $65

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