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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 38, 2008 - Issue 21
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Original Articles

P2O5-Hexamethyldisiloxane (HMDS): An Efficient System to Induce the Three-Component Reaction of Enolic Systems, Aromatic Aldehydes, and Acetonitrile

, &
Pages 3706-3716 | Received 21 Apr 2008, Published online: 14 Oct 2008
 

Abstract

Three-component reaction of an enolizable compound, such as acetophenone, methyl acetoacetate, 4-hydroxycoumarin, 2-naphthol, or 3-hydroxy-2-naphthoic acid; an aromatic aldehyde, and acetonitrile induced by phosphorus pentoxide and hexamethyldisiloxane leads to 2-acetylamino ketones, methyl 3-(acetylamino aryl methyl)-3-oxobutanoates, 3-(acetylamino aryl methyl)-4-hydroxycoumarins, 1-(acetylamino aryl methyl)-2-naphthols, or 4-(acetylamino aryl methyl)-3-hydroxy-2-naphthoic acids in excellent yields.

Notes

a Isolated yields.

a Yields refer to the pure isolated products. Compounds 7a–i were new, and their structures were deducted by elemental and spectral analysis. Compounds 7j–s were known compounds, and their structures were deduced by comparing their melting points and spectral data with authentic samples.[ Citation 17 ]

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