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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 40, 2010 - Issue 12
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Original Articles

Oxidative Coupling of 1,3-Dicarbonyl Compounds by Cerium(IV) Ammonium Nitrate

, , , &
Pages 1847-1855 | Received 21 Jan 2009, Published online: 17 May 2010
 

Abstract

A fast, mild, and highly efficient method for the intermolecular coupling of 1,3-dicarbonyl compounds using cerium ammonium nitrate in CH3CN/CH3OH/H2O has been described. The procedure provided a convenient method for the synthesis of 1,4-diketone derivatives with excellent yields (up to 96%) and powerful evidence for the oxidation mechanism mediated by cerium ammonium nitrate.

ACKNOWLEDGMENTs

This work was supported by National Natural Science Foundation of China (Nos. 20572101 and 20672101) and Xin Miao Talent Scheme of Zhejiang (No. 2008R40G2030026).

Notes

a Reactions performed with the 1.1 eq. of CAN in CH3CN/CH3OH/H2O (2/1/1, v/v/v) at −20 °C for 15 min.

b Isolated yield.

c Reactions performed with the 1.1 eq. of CAN in CH3CN/CH3OH/H2O (2/1/1, v/v/v) at −20 °C for 4 h.

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