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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 32, 2002 - Issue 2
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Original Articles

ENAMINONES IN ORGANIC SYNTHESIS: A NOVEL SYNTHESIS OF 1,3,5-TRISUBSTITUTED BENZENE DERIVATIVES AND OF 2-SUBSTITUTED-5-AROYLPYRIDINES

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Pages 159-164 | Received 28 Feb 2001, Published online: 16 Aug 2006
 

ABSTRACT

Enaminones undergo self-condensation on reflux in acidic media yielding 1,3,5-trisubstituted benzene in very high yields. Reaction of enaminones 1a,b with ethyl propiolate affords 5-aroyl-1,3-benzene dicarboxylate derivatives.

ACKNOWLEDGMENT

We are grateful to Alexander Von Humboldt stiftung for granting a Stependium to Prof. M. H. Elnagdi. The discussion of Prof. E. Fanghanel at University of Halle is highly appreciated. Some 1H NMR and 13C NMR spectra were carried out at University of Halle.

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