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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 40, 2010 - Issue 4
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Original Articles

Facile Procedure for the Synthesis of 3-Acetyl-9-ethylcarbazole and Corresponding Functionalized Bis-β-diketone Compounds

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Pages 601-606 | Received 26 Feb 2009, Published online: 03 Feb 2010
 

Abstract

Acetylation-substituted N-ethylcarbazole at the 3-position was synthesized in 80% yield using ZnCl2 as catalyst, and its corresponding functionalized bis-β-diketone compounds 2a and 2b were prepared by Claisen condensation with acceptable yields. Lanthanide complexes with the two compounds could be used as potential luminescent materials.

ACKNOWLEDGMENTS

We gratefully acknowledge financial support of this work by the China Postdoctoral Science Foundation (No. 20080431027) and the Postdoctoral Science Foundation of Central South University.

Notes

a Molar amount ratio of catalyst and N-ethylcarbazole.

b The yield is based on isolation by column chromatography, and 3-acetyl-9-ethylcarbazole was characterized by FT-IR and 1H NMR.

c Yield reported in the literature.[ Citation 7a ]

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